US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Koppers

46.72

+0.79001.72%

Post-market: 46.720.00000.00%19:30 EDT

Volume:205.51K

Turnover:9.70M

Market Cap:883.55M

PE:-10.07

High:47.94

Open:45.84

Low:45.42

Close:45.93

52wk High:53.00

52wk Low:25.00

Shares:18.91M

Float Shares:16.42M

Volume Ratio:1.34

T/O Rate:1.25%

Dividend:0.35

Dividend Rate:0.75%

EPS(TTM):-4.6400

EPS(LYR):2.74

ROE:-19.01%

ROA:6.49%

PB:2.28

PE(LYR):17.05

Loading ...

Overview Company News Filings

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Beneficial Ownership Change

Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]

Beneficial Ownership Change

Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]

Major Issues Report

Form 8-K - Current report

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Employee Stock Ownership

Form S-8 - Securities to be offered to employees in employee benefit plans

Major Issues Report

Form 8-K/A - Current report: [Amend]

Beneficial Ownership Change

Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors

Beneficial Ownership Change

Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]

Major Issues Report

Form 8-K/A - Current report: [Amend]

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Annual Report

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.0a0bd8dc.png","ogUrl":"https://au1.tigermoments.com/stock/KOP/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"KOP","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"KOP\",,,,,undefined,":{"symbol":"KOP","market":"US","secType":"STK","nameCN":"Koppers","latestPrice":46.72,"timestamp":1788379200000,"preClose":45.93,"halted":0,"volume":205505,"hourTrading":{"tag":"盘后","latestPrice":46.72,"preClose":46.72,"latestTime":"19:30 EDT","volume":4331,"amount":202344.32,"timestamp":1788391808566,"change":0,"changeRate":0,"amplitude":0},"delay":0,"changeRate":0.017200087089048535,"floatShares":16417600,"shares":18911600,"eps":-4.64,"marketStatus":"Post-Mkt","change":0.79,"latestTime":"09-02 19:43:32 EDT","open":45.84,"high":47.94,"low":45.4201,"amount":9697686.4177,"amplitude":0.054864,"askPrice":47.1,"askSize":99,"bidPrice":46.4,"bidSize":99,"shortable":3,"etf":0,"ttmEps":-4.64,"tradingStatus":3,"nextMarketStatus":{"tag":"Closed","tradingStatus":0,"beginTime":1788393600000},"marketStatusCode":4,"adr":0,"adrRate":0,"listingDate":1138770000000,"exchange":"NYSE","adjPreClose":45.93,"dividendRate":0.007491,"postHourTrading":{"tag":"盘后","latestPrice":46.72,"preClose":46.72,"latestTime":"19:30 EDT","volume":4331,"amount":202344.32,"timestamp":1788391808566,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":1.337906,"impliedVol":0.528,"impliedVolPercentile":0.7063},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"KOP\",,,,,undefined,":{"symbol":"KOP","floatShares":16417600,"roa":"6.49%","roe":"-19.01%","lyrEps":2.74,"volumeRatio":1.337906,"shares":18911600,"dividePrice":0.35,"high":47.94,"amplitude":0.054864,"preClose":45.93,"low":45.4201,"week52Low":25,"pbRate":"2.28","psRate":"0.47","week52High":53,"institutionHeld":0.9196,"latestPrice":46.72,"eps":-4.64,"divideRate":0.007491,"volume":205505,"delay":0,"ttmEps":-4.64,"open":45.84,"prevYearClose":27.08,"prevWeekClose":46.56,"prevMonthClose":45.87,"prevQuarterClose":44.9,"fiveDayClose":46.34,"twentyDayClose":51.03,"sixtyDayClose":41.22,"dividendPayoutRate":0.11345715290620498,"dividendFrequency":"Q","dividendGrowthYears":3,"dividendGrowthRate":0.14285714285714277,"fiveYearAvgDividendRate":0.008060436081985312},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/KOP\",params:#limit:5,,,undefined,":[{"date":"2026-08-28","symbol":"KOP","amount":0.09,"announcedDate":"2026-08-05","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-08-28","defaultRemindTime":1787923800000,"name":"科佩斯控股","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-09-14","payableDate":"2026-08-28","currency":"USD","dateTimestamp":1787889600000,"payDate":"2026-09-14"},{"market":"US","date":"2026-08-06","symbol":"KOP","fiscalQuarterEnding":"2026/06","expectedEps":1.12,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1785988800000,"reportTimeType":"pre","actualEps":1.37},{"date":"2026-05-29","symbol":"KOP","amount":0.09,"announcedDate":"2026-05-07","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-05-29","defaultRemindTime":1780061400000,"name":"科佩斯控股","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-06-15","payableDate":"2026-05-29","currency":"USD","dateTimestamp":1780027200000,"payDate":"2026-06-15"},{"market":"US","date":"2026-05-08","symbol":"KOP","fiscalQuarterEnding":"2026/03","expectedEps":0.44,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1778212800000,"reportTimeType":"pre","actualEps":0.57},{"date":"2026-03-06","symbol":"KOP","amount":0.09,"announcedDate":"2026-02-11","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-03-06","defaultRemindTime":1772807400000,"name":"科佩斯控股","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-03-23","payableDate":"2026-03-06","currency":"USD","dateTimestamp":1772773200000,"payDate":"2026-03-23"}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"KOP\",market:\"US\",,,undefined,":[{"executeDate":"2022-03-17","recordDate":"2022-03-18","paymentDate":"2022-04-04","value":0.05,"currency":"USD"},{"executeDate":"2022-05-26","recordDate":"2022-05-27","paymentDate":"2022-06-13","value":0.05,"currency":"USD"},{"executeDate":"2022-08-25","recordDate":"2022-08-26","paymentDate":"2022-09-12","value":0.05,"currency":"USD"},{"executeDate":"2022-11-23","recordDate":"2022-11-25","paymentDate":"2022-12-12","value":0.05,"currency":"USD"},{"executeDate":"2023-03-09","recordDate":"2023-03-10","paymentDate":"2023-03-27","value":0.06,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"KOP\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.6667,"buy":0.3333,"hold":0,"sell":0,"strongSell":0,"meanLabel":"STRONG BUY","meanPercent":0.6667,"analysts":3,"updateTime":1710302400000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/KOP\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"KOP","date":"2026-09-01","current":-10.068966,"percent":0.009796,"low":-11.388289,"twenty":7.94548,"median":9.952913,"eighty":13.042637,"high":42.772978,"avg":13.022411,"sd":9.602347,"marketCap":867473624},"quantilePoints":[{"date":"2021-09-03","current":4.835471,"twenty":-12.111871,"median":6.937067,"eighty":24.285776,"marketCap":710814281},{"date":"2021-09-10","current":4.610464,"twenty":-12.031125,"median":6.937067,"eighty":24.285776,"marketCap":677738264},{"date":"2021-09-17","current":4.28239,"twenty":-11.92864,"median":6.937067,"eighty":24.285776,"marketCap":629511297},{"date":"2021-09-24","current":4.53643,"twenty":-11.816838,"median":6.937067,"eighty":24.285776,"marketCap":666855187},{"date":"2021-10-01","current":4.678692,"twenty":-11.650987,"median":6.937067,"eighty":24.285776,"marketCap":687767766},{"date":"2021-10-08","current":4.819503,"twenty":-11.328903,"median":6.929352,"eighty":24.276961,"marketCap":708466951},{"date":"2021-10-15","current":4.855795,"twenty":-11.236629,"median":6.929352,"eighty":24.276961,"marketCap":713801792},{"date":"2021-10-22","current":5.002412,"twenty":-11.177097,"median":6.929352,"eighty":24.276961,"marketCap":735354552},{"date":"2021-10-29","current":5.093866,"twenty":-11.090776,"median":6.929352,"eighty":24.276961,"marketCap":748798352},{"date":"2021-11-05","current":8.747571,"twenty":-10.933017,"median":6.946447,"eighty":24.276961,"marketCap":713801792},{"date":"2021-11-12","current":9.034295,"twenty":-10.879438,"median":6.992612,"eighty":24.276961,"marketCap":737198499},{"date":"2021-11-19","current":8.436361,"twenty":-10.822883,"median":7.057832,"eighty":24.276961,"marketCap":688407037},{"date":"2021-11-26","current":8.230086,"twenty":-10.724655,"median":7.150172,"eighty":24.276961,"marketCap":671575048},{"date":"2021-12-03","current":8.078644,"twenty":-10.635358,"median":7.207604,"eighty":24.276961,"marketCap":659217386},{"date":"2021-12-10","current":8.300585,"twenty":-10.54606,"median":7.338125,"eighty":24.276961,"marketCap":677327753},{"date":"2021-12-17","current":7.752261,"twenty":-10.441879,"median":7.413472,"eighty":24.276961,"marketCap":632584492},{"date":"2021-12-23","current":8.112588,"twenty":-10.310909,"median":7.464939,"eighty":24.276961,"marketCap":661987207},{"date":"2021-12-31","current":8.172643,"twenty":2.937714,"median":7.546529,"eighty":24.276961,"marketCap":666887659},{"date":"2022-01-07","current":8.329307,"twenty":3.253419,"median":7.63139,"eighty":24.268145,"marketCap":679671448},{"date":"2022-01-14","current":8.21442,"twenty":3.424956,"median":7.660874,"eighty":24.268145,"marketCap":670296669},{"date":"2022-01-21","current":7.825371,"twenty":3.532209,"median":7.714709,"eighty":24.268145,"marketCap":638550260},{"date":"2022-01-28","current":7.851482,"twenty":3.682232,"median":7.753436,"eighty":24.25933,"marketCap":640680892},{"date":"2022-02-04","current":7.679151,"twenty":3.898482,"median":7.792235,"eighty":24.25933,"marketCap":626618724},{"date":"2022-02-11","current":7.559042,"twenty":4.032121,"median":7.792235,"eighty":24.25933,"marketCap":616817819},{"date":"2022-02-18","current":7.760094,"twenty":4.167904,"median":7.836386,"eighty":24.25933,"marketCap":633223681},{"date":"2022-02-25","current":7.257151,"twenty":4.212605,"median":7.836386,"eighty":24.25933,"marketCap":618309261},{"date":"2022-03-04","current":7.047089,"twenty":4.275508,"median":7.836386,"eighty":24.25933,"marketCap":600411956},{"date":"2022-03-11","current":7.032084,"twenty":4.312895,"median":7.836386,"eighty":24.25933,"marketCap":599133577},{"date":"2022-03-18","current":7.477216,"twenty":4.344615,"median":7.836386,"eighty":24.25933,"marketCap":637058818},{"date":"2022-03-25","current":7.072096,"twenty":4.360489,"median":7.836386,"eighty":24.25933,"marketCap":602542588},{"date":"2022-04-01","current":6.874538,"twenty":4.373682,"median":7.836386,"eighty":24.25933,"marketCap":585710599},{"date":"2022-04-08","current":6.156825,"twenty":4.400963,"median":7.836386,"eighty":24.25933,"marketCap":524561475},{"date":"2022-04-14","current":6.711989,"twenty":4.422719,"median":7.836386,"eighty":24.25933,"marketCap":571861494},{"date":"2022-04-22","current":6.333886,"twenty":4.439667,"median":7.836386,"eighty":24.25933,"marketCap":539647072},{"date":"2022-04-29","current":6.016448,"twenty":4.459016,"median":7.836386,"eighty":24.25933,"marketCap":512601330},{"date":"2022-05-06","current":6.539048,"twenty":4.495153,"median":7.836386,"eighty":24.25933,"marketCap":510699676},{"date":"2022-05-13","current":6.638009,"twenty":4.504015,"median":7.836386,"eighty":24.25933,"marketCap":518428493},{"date":"2022-05-20","current":6.610937,"twenty":4.535686,"median":7.836386,"eighty":24.25933,"marketCap":516314184},{"date":"2022-05-27","current":7.266075,"twenty":4.552468,"median":7.836386,"eighty":24.25933,"marketCap":567480455},{"date":"2022-06-03","current":7.585522,"twenty":4.581937,"median":7.836386,"eighty":24.25933,"marketCap":592429297},{"date":"2022-06-10","current":7.214639,"twenty":4.608856,"median":7.836386,"eighty":24.25933,"marketCap":563463268},{"date":"2022-06-17","current":5.955799,"twenty":4.63251,"median":7.836386,"eighty":24.25933,"marketCap":465147914},{"date":"2022-06-24","current":6.410606,"twenty":4.647337,"median":7.847402,"eighty":24.268145,"marketCap":500668300},{"date":"2022-07-01","current":6.172374,"twenty":4.677008,"median":7.847402,"eighty":24.268145,"marketCap":482062383},{"date":"2022-07-08","current":5.934142,"twenty":4.682978,"median":7.847402,"eighty":24.268145,"marketCap":463456467},{"date":"2022-07-15","current":5.825854,"twenty":4.72407,"median":7.847402,"eighty":24.268145,"marketCap":454999232},{"date":"2022-07-22","current":6.142595,"twenty":4.742754,"median":7.847402,"eighty":24.268145,"marketCap":479736644},{"date":"2022-07-29","current":6.372705,"twenty":4.766554,"median":7.847402,"eighty":24.268145,"marketCap":497708267},{"date":"2022-08-05","current":7.986641,"twenty":4.77828,"median":7.851482,"eighty":24.268145,"marketCap":502359747},{"date":"2022-08-12","current":8.81018,"twenty":4.803593,"median":7.888036,"eighty":24.268145,"marketCap":554160310},{"date":"2022-08-19","current":8.348863,"twenty":4.82242,"median":7.916758,"eighty":24.268145,"marketCap":525143469},{"date":"2022-08-26","current":8.122948,"twenty":4.834641,"median":7.952322,"eighty":24.268145,"marketCap":510933459},{"date":"2022-09-02","current":7.49504,"twenty":4.858407,"median":7.954251,"eighty":24.268145,"marketCap":471437989},{"date":"2022-09-09","current":7.677764,"twenty":4.875581,"median":7.954251,"eighty":24.268145,"marketCap":482931380},{"date":"2022-09-16","current":7.219291,"twenty":4.895568,"median":7.954251,"eighty":24.268145,"marketCap":454093418},{"date":"2022-09-23","current":7.019955,"twenty":4.951188,"median":7.954251,"eighty":24.268145,"marketCap":441555173},{"date":"2022-09-30","current":6.903676,"twenty":5.002787,"median":7.954251,"eighty":24.268145,"marketCap":434241197},{"date":"2022-10-07","current":7.199358,"twenty":5.051188,"median":7.954251,"eighty":24.268145,"marketCap":452839593},{"date":"2022-10-14","current":7.312315,"twenty":5.090963,"median":7.954251,"eighty":24.268145,"marketCap":459944598},{"date":"2022-10-21","current":7.737565,"twenty":5.163745,"median":7.954251,"eighty":24.268145,"marketCap":486692853},{"date":"2022-10-28","current":8.348863,"twenty":5.203331,"median":7.996702,"eighty":24.268145,"marketCap":525143469},{"date":"2022-11-04","current":8.065233,"twenty":5.413108,"median":8.021201,"eighty":24.268145,"marketCap":579083718},{"date":"2022-11-11","current":8.242779,"twenty":5.645532,"median":8.028626,"eighty":24.268145,"marketCap":591831501},{"date":"2022-11-18","current":8.458162,"twenty":5.725924,"median":8.060367,"eighty":24.268145,"marketCap":607296025},{"date":"2022-11-25","current":8.589138,"twenty":5.773736,"median":8.0756,"eighty":24.268145,"marketCap":616700127},{"date":"2022-12-02","current":8.865644,"twenty":5.823853,"median":8.099693,"eighty":24.268145,"marketCap":636553232},{"date":"2022-12-09","current":8.955872,"twenty":5.837766,"median":8.123445,"eighty":24.268145,"marketCap":643031613},{"date":"2022-12-16","current":8.752131,"twenty":5.861506,"median":8.15389,"eighty":24.268145,"marketCap":628403010},{"date":"2022-12-23","current":8.533837,"twenty":5.90059,"median":8.185698,"eighty":24.268145,"marketCap":612729506},{"date":"2022-12-30","current":8.207852,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":589323741},{"date":"2023-01-06","current":8.545479,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":613565426},{"date":"2023-01-13","current":9.331338,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":669990040},{"date":"2023-01-20","current":9.214914,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":661630838},{"date":"2023-01-27","current":9.424476,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":676677401},{"date":"2023-02-03","current":10.268546,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":737281616},{"date":"2023-02-10","current":9.732998,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":698829287},{"date":"2023-02-17","current":10.096822,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":724951793},{"date":"2023-02-24","current":9.997862,"twenty":5.916712,"median":8.21442,"eighty":24.268145,"marketCap":717846471},{"date":"2023-03-03","current":12.33723,"twenty":5.916712,"median":8.21442,"eighty":24.120051,"marketCap":782180393},{"date":"2023-03-10","current":11.036153,"twenty":5.916712,"median":8.21442,"eighty":23.769185,"marketCap":699692128},{"date":"2023-03-17","current":10.438184,"twenty":5.916712,"median":8.21442,"eighty":23.644809,"marketCap":661780854},{"date":"2023-03-24","current":10.783166,"twenty":5.916712,"median":8.21442,"eighty":23.53421,"marketCap":683652743},{"date":"2023-03-31","current":11.489559,"twenty":5.918314,"median":8.21442,"eighty":23.315158,"marketCap":728438038},{"date":"2023-04-06","current":10.98687,"twenty":5.918314,"median":8.21442,"eighty":23.215732,"marketCap":696567572},{"date":"2023-04-14","current":11.413991,"twenty":5.915111,"median":8.211136,"eighty":22.939677,"marketCap":723647053},{"date":"2023-04-21","current":11.19386,"twenty":5.915111,"median":8.211136,"eighty":22.703728,"marketCap":709690705},{"date":"2023-04-28","current":10.605747,"twenty":5.915111,"median":8.211136,"eighty":22.389349,"marketCap":672404343},{"date":"2023-05-05","current":10.287049,"twenty":5.915111,"median":8.211136,"eighty":21.971534,"marketCap":652198884},{"date":"2023-05-12","current":9.284835,"twenty":5.911907,"median":8.200692,"eighty":22.141434,"marketCap":650866937},{"date":"2023-05-19","current":9.513613,"twenty":5.911907,"median":8.200692,"eighty":22.141434,"marketCap":666904298},{"date":"2023-05-26","current":8.955038,"twenty":5.911907,"median":8.200692,"eighty":22.141434,"marketCap":627748143},{"date":"2023-06-02","current":8.672779,"twenty":5.911907,"median":8.200692,"eighty":22.141434,"marketCap":607961788},{"date":"2023-06-09","current":9.804786,"twenty":5.911907,"median":8.200692,"eighty":22.141434,"marketCap":687315486},{"date":"2023-06-16","current":10.191035,"twenty":5.911907,"median":8.200692,"eighty":22.141434,"marketCap":714391550},{"date":"2023-06-23","current":9.786959,"twenty":5.911736,"median":8.193531,"eighty":22.149568,"marketCap":686065821},{"date":"2023-06-30","current":10.006824,"twenty":5.911565,"median":8.189615,"eighty":22.157703,"marketCap":701478350},{"date":"2023-07-07","current":10.012766,"twenty":5.911565,"median":8.189615,"eighty":22.157703,"marketCap":701894905},{"date":"2023-07-14","current":10.630765,"twenty":5.911565,"median":8.189615,"eighty":22.157703,"marketCap":745216608},{"date":"2023-07-21","current":10.924908,"twenty":5.911565,"median":8.189615,"eighty":22.157703,"marketCap":765836073},{"date":"2023-07-28","current":10.835774,"twenty":5.911565,"median":8.189615,"eighty":22.157703,"marketCap":759587750},{"date":"2023-08-04","current":9.647591,"twenty":5.911565,"median":8.189615,"eighty":22.157703,"marketCap":799785292},{"date":"2023-08-11","current":9.723595,"twenty":5.911565,"median":8.189615,"eighty":21.706147,"marketCap":806086063},{"date":"2023-08-18","current":9.796611,"twenty":5.911565,"median":8.189615,"eighty":20.944753,"marketCap":812139014},{"date":"2023-08-25","current":9.298094,"twenty":5.911565,"median":8.189615,"eighty":20.160442,"marketCap":770811970},{"date":"2023-09-01","current":9.640509,"twenty":5.911565,"median":8.189615,"eighty":19.9432,"marketCap":799198222},{"date":"2023-09-08","current":9.429017,"twenty":5.911565,"median":8.189615,"eighty":19.870383,"marketCap":781665537},{"date":"2023-09-15","current":9.600225,"twenty":5.911565,"median":8.189615,"eighty":19.749629,"marketCap":795858663},{"date":"2023-09-22","current":10.423533,"twenty":5.911565,"median":8.189615,"eighty":19.452642,"marketCap":864110901},{"date":"2023-09-29","current":10.141544,"twenty":5.911565,"median":8.189615,"eighty":19.306518,"marketCap":840733988},{"date":"2023-10-06","current":9.554905,"twenty":5.911565,"median":8.189615,"eighty":18.991251,"marketCap":792101659},{"date":"2023-10-13","current":9.700936,"twenty":5.911565,"median":8.189615,"eighty":18.630624,"marketCap":804207561},{"date":"2023-10-20","current":9.149546,"twenty":5.911565,"median":8.189615,"eighty":18.544445,"marketCap":758497346},{"date":"2023-10-27","current":8.965749,"twenty":5.911051,"median":8.184963,"eighty":18.466331,"marketCap":743260608},{"date":"2023-11-02","current":9.29054,"twenty":5.911051,"median":8.184963,"eighty":18.375716,"marketCap":770185803},{"date":"2023-11-10","current":9.188958,"twenty":5.910883,"median":8.179603,"eighty":18.231686,"marketCap":827925104},{"date":"2023-11-17","current":9.789845,"twenty":5.910883,"median":8.179603,"eighty":18.108958,"marketCap":882065075},{"date":"2023-11-24","current":10.023267,"twenty":5.910883,"median":8.179603,"eighty":18.016589,"marketCap":903096372},{"date":"2023-12-01","current":10.439266,"twenty":5.910883,"median":8.179603,"eighty":17.928366,"marketCap":940577891},{"date":"2023-12-08","current":10.309844,"twenty":5.911051,"median":8.184963,"eighty":17.774797,"marketCap":928916974},{"date":"2023-12-15","current":10.515533,"twenty":5.911051,"median":8.184963,"eighty":17.669875,"marketCap":947449503},{"date":"2023-12-22","current":11.38682,"twenty":5.911051,"median":8.184963,"eighty":17.421463,"marketCap":1025952461},{"date":"2023-12-29","current":12.017752,"twenty":5.910883,"median":8.179603,"eighty":17.245811,"marketCap":1082799432},{"date":"2024-01-05","current":10.788243,"twenty":5.910714,"median":8.174243,"eighty":17.004095,"marketCap":972020720},{"date":"2024-01-12","current":11.42842,"twenty":5.910714,"median":8.174243,"eighty":16.618744,"marketCap":1029700613},{"date":"2024-01-19","current":11.38682,"twenty":5.910546,"median":8.173443,"eighty":16.355484,"marketCap":1025952461},{"date":"2024-01-26","current":12.008507,"twenty":5.910714,"median":8.174243,"eighty":16.194285,"marketCap":1081966509},{"date":"2024-02-02","current":12.170285,"twenty":5.910714,"median":8.174243,"eighty":15.850903,"marketCap":1096542655},{"date":"2024-02-09","current":11.775086,"twenty":5.910714,"median":8.174243,"eighty":15.608628,"marketCap":1060935212},{"date":"2024-02-16","current":12.075529,"twenty":5.910714,"median":8.174243,"eighty":15.057309,"marketCap":1088005198},{"date":"2024-02-23","current":12.054729,"twenty":5.910714,"median":8.174243,"eighty":13.541658,"marketCap":1086131122},{"date":"2024-03-01","current":13.347587,"twenty":5.910883,"median":8.179603,"eighty":12.61214,"marketCap":1190604793},{"date":"2024-03-08","current":12.404628,"twenty":5.910883,"median":8.179603,"eighty":12.42113,"marketCap":1106492833},{"date":"2024-03-15","current":12.497525,"twenty":5.910883,"median":8.179603,"eighty":12.413115,"marketCap":1114779247},{"date":"2024-03-22","current":12.893782,"twenty":5.910883,"median":8.179603,"eighty":12.413115,"marketCap":1150125390},{"date":"2024-03-28","current":12.979203,"twenty":5.910883,"median":8.179603,"eighty":12.413115,"marketCap":1157744918},{"date":"2024-04-05","current":13.064624,"twenty":5.910714,"median":8.174243,"eighty":12.364189,"marketCap":1165364446},{"date":"2024-04-12","current":13.337496,"twenty":5.910714,"median":8.174243,"eighty":12.364189,"marketCap":1189704604},{"date":"2024-04-19","current":12.611419,"twenty":5.910714,"median":8.174243,"eighty":12.364189,"marketCap":1124938618},{"date":"2024-04-26","current":12.703959,"twenty":5.910883,"median":8.179603,"eighty":12.413115,"marketCap":1133193106},{"date":"2024-05-03","current":12.554472,"twenty":5.910883,"median":8.179603,"eighty":12.35071,"marketCap":1119858933},{"date":"2024-05-10","current":12.023572,"twenty":5.910883,"median":8.179603,"eighty":12.170819,"marketCap":922208004},{"date":"2024-05-17","current":12.424358,"twenty":5.910883,"median":8.179603,"eighty":12.140057,"marketCap":952948270},{"date":"2024-05-24","current":11.946179,"twenty":5.910883,"median":8.179603,"eighty":12.067132,"marketCap":916271952},{"date":"2024-05-31","current":11.946179,"twenty":5.910883,"median":8.179603,"eighty":12.04076,"marketCap":916271952},{"date":"2024-06-07","current":11.802449,"twenty":5.910883,"median":8.179603,"eighty":12.026568,"marketCap":905247856},{"date":"2024-06-14","current":11.130788,"twenty":5.910714,"median":8.174243,"eighty":11.951707,"marketCap":853731409},{"date":"2024-06-21","current":10.743822,"twenty":5.910546,"median":8.173443,"eighty":11.92577,"marketCap":824051152},{"date":"2024-06-28","current":10.284991,"twenty":5.90919,"median":8.162816,"eighty":11.898499,"marketCap":788858846},{"date":"2024-07-05","current":10.163374,"twenty":5.90919,"median":8.162816,"eighty":11.845423,"marketCap":779530765},{"date":"2024-07-12","current":10.0307,"twenty":5.90919,"median":8.162816,"eighty":11.793953,"marketCap":769354677},{"date":"2024-07-15","current":10.05834,"twenty":5.90919,"median":8.162816,"eighty":11.778435,"marketCap":771474695},{"date":"2024-08-02","current":10.616676,"twenty":5.889261,"median":8.124289,"eighty":11.583991,"marketCap":814299067},{"date":"2024-08-09","current":9.542766,"twenty":5.889261,"median":8.124289,"eighty":11.496778,"marketCap":753878543},{"date":"2024-08-16","current":9.740172,"twenty":5.889261,"median":8.124289,"eighty":11.475288,"marketCap":769473600},{"date":"2024-08-23","current":9.776535,"twenty":5.889261,"median":8.124289,"eighty":11.414441,"marketCap":772346301},{"date":"2024-08-30","current":10.124584,"twenty":5.889261,"median":8.124289,"eighty":11.365442,"marketCap":799842158},{"date":"2024-09-06","current":9.657056,"twenty":5.889261,"median":8.124289,"eighty":11.33594,"marketCap":762907425},{"date":"2024-09-13","current":9.521992,"twenty":5.889261,"median":8.124289,"eighty":11.238798,"marketCap":752237391},{"date":"2024-09-20","current":9.719393,"twenty":5.889261,"median":8.124289,"eighty":11.192956,"marketCap":767832056},{"date":"2024-09-27","current":9.618095,"twenty":5.889261,"median":8.124289,"eighty":11.120264,"marketCap":759829530},{"date":"2024-10-04","current":9.14797,"twenty":5.889261,"median":8.124289,"eighty":10.998659,"marketCap":722689605},{"date":"2024-10-11","current":9.498616,"twenty":5.889261,"median":8.124289,"eighty":10.933905,"marketCap":750390654},{"date":"2024-10-18","current":9.83108,"twenty":5.889261,"median":8.124289,"eighty":10.889256,"marketCap":776655353},{"date":"2024-10-25","current":9.025893,"twenty":5.889261,"median":8.124289,"eighty":10.821212,"marketCap":713045536},{"date":"2024-10-31","current":8.909011,"twenty":5.889261,"median":8.124289,"eighty":10.773696,"marketCap":703811852},{"date":"2024-11-08","current":9.877833,"twenty":5.888124,"median":8.123445,"eighty":10.6846,"marketCap":780348826},{"date":"2024-11-15","current":10.083456,"twenty":5.888124,"median":8.123445,"eighty":10.616676,"marketCap":761300898},{"date":"2024-11-22","current":10.142517,"twenty":5.888124,"median":8.123445,"eighty":10.574313,"marketCap":765760062},{"date":"2024-11-29","current":10.325072,"twenty":5.888124,"median":8.123445,"eighty":10.515533,"marketCap":779542932},{"date":"2024-12-06","current":9.718346,"twenty":5.888124,"median":8.123445,"eighty":10.475411,"marketCap":733735157},{"date":"2024-12-13","current":9.068667,"twenty":5.888124,"median":8.123445,"eighty":10.423533,"marketCap":684684354},{"date":"2024-12-20","current":8.416303,"twenty":5.888124,"median":8.123445,"eighty":10.327858,"marketCap":635430861},{"date":"2024-12-27","current":8.657919,"twenty":5.888124,"median":8.123445,"eighty":10.312205,"marketCap":653672895},{"date":"2025-01-03","current":8.539796,"twenty":5.888124,"median":8.123445,"eighty":10.280427,"marketCap":644754567},{"date":"2025-01-10","current":8.139786,"twenty":5.88752,"median":8.123196,"eighty":10.263076,"marketCap":614553866},{"date":"2025-01-17","current":8.54248,"twenty":5.88752,"median":8.112688,"eighty":10.235602,"marketCap":644957257},{"date":"2025-01-24","current":8.510265,"twenty":5.88752,"median":8.112688,"eighty":10.213588,"marketCap":642524985},{"date":"2025-01-31","current":8.220325,"twenty":5.88752,"median":8.112688,"eighty":10.184948,"marketCap":620634544},{"date":"2025-02-07","current":7.978709,"twenty":5.88752,"median":8.091444,"eighty":10.154118,"marketCap":602392510},{"date":"2025-02-14","current":8.091463,"twenty":5.88752,"median":8.080286,"eighty":10.127097,"marketCap":610905459},{"date":"2025-02-21","current":8.209587,"twenty":5.88752,"median":8.080286,"eighty":10.086129,"marketCap":619823787},{"date":"2025-02-28","current":11.314239,"twenty":5.88752,"median":8.084011,"eighty":10.074447,"marketCap":592866114},{"date":"2025-03-07","current":11.630747,"twenty":5.891534,"median":8.099693,"eighty":10.119909,"marketCap":609451122},{"date":"2025-03-14","current":11.095146,"twenty":5.916712,"median":8.112788,"eighty":10.143813,"marketCap":581385641},{"date":"2025-03-21","current":11.638566,"twenty":5.93937,"median":8.139786,"eighty":10.170065,"marketCap":609860837},{"date":"2025-03-28","current":11.392267,"twenty":5.954033,"median":8.15389,"eighty":10.204801,"marketCap":596954813},{"date":"2025-04-04","current":10.164686,"twenty":5.971828,"median":8.185425,"eighty":10.227017,"marketCap":532629552},{"date":"2025-04-11","current":9.531348,"twenty":5.985323,"median":8.212004,"eighty":10.2256,"marketCap":499442633},{"date":"2025-04-17","current":9.258623,"twenty":5.993565,"median":8.222707,"eighty":10.2256,"marketCap":485151834},{"date":"2025-04-25","current":9.831281,"twenty":6.015433,"median":8.231064,"eighty":10.227017,"marketCap":515159150},{"date":"2025-05-02","current":9.666018,"twenty":6.04456,"median":8.25151,"eighty":10.227017,"marketCap":506499320},{"date":"2025-05-09","current":10.054196,"twenty":6.075892,"median":8.272451,"eighty":10.227017,"marketCap":526839850},{"date":"2025-05-16","current":24.655543,"twenty":6.094121,"median":8.299029,"eighty":10.252521,"marketCap":628716336},{"date":"2025-05-23","current":23.831599,"twenty":6.1021,"median":8.325026,"eighty":10.272901,"marketCap":607705765},{"date":"2025-05-30","current":24.757555,"twenty":6.1021,"median":8.353529,"eighty":10.296167,"marketCap":631317645},{"date":"2025-06-06","current":24.781096,"twenty":6.1021,"median":8.405028,"eighty":10.326186,"marketCap":631917947},{"date":"2025-06-13","current":25.683511,"twenty":6.1021,"median":8.420324,"eighty":10.419106,"marketCap":654929525},{"date":"2025-06-20","current":24.443671,"twenty":6.102063,"median":8.442439,"eighty":10.448474,"marketCap":623313618},{"date":"2025-06-27","current":24.945885,"twenty":6.102063,"median":8.468349,"eighty":10.514989,"marketCap":636120061},{"date":"2025-07-03","current":26.436831,"twenty":6.102063,"median":8.508923,"eighty":10.56,"marketCap":674139190},{"date":"2025-07-11","current":27.143069,"twenty":6.102063,"median":8.523688,"eighty":10.603119,"marketCap":692148252},{"date":"2025-07-18","current":25.314698,"twenty":6.102063,"median":8.541138,"eighty":10.660287,"marketCap":645524793},{"date":"2025-07-25","current":26.279889,"twenty":6.102063,"median":8.568729,"eighty":10.741253,"marketCap":670137177},{"date":"2025-08-01","current":25.785523,"twenty":6.102063,"median":8.568729,"eighty":10.804709,"marketCap":657530834},{"date":"2025-08-08","current":26.107253,"twenty":6.102063,"median":8.576038,"eighty":10.857693,"marketCap":665734962},{"date":"2025-08-15","current":40.005546,"twenty":6.102063,"median":8.615277,"eighty":10.899381,"marketCap":604083747},{"date":"2025-08-22","current":37.590068,"twenty":6.102063,"median":8.629883,"eighty":10.92372,"marketCap":567610022},{"date":"2025-08-29","current":37.877314,"twenty":6.102063,"median":8.664051,"eighty":10.981101,"marketCap":571947438},{"date":"2025-09-05","current":37.368105,"twenty":6.102025,"median":8.672779,"eighty":11.029968,"marketCap":564258382},{"date":"2025-09-12","current":37.733691,"twenty":6.102063,"median":8.695217,"eighty":11.092576,"marketCap":569778730},{"date":"2025-09-19","current":38.32124,"twenty":6.102063,"median":8.783121,"eighty":11.170694,"marketCap":578650717},{"date":"2025-09-26","current":36.754443,"twenty":6.102063,"median":8.811861,"eighty":11.215233,"marketCap":554992085},{"date":"2025-10-03","current":35.174589,"twenty":6.102063,"median":8.838957,"eighty":11.272713,"marketCap":531136297},{"date":"2025-10-10","current":34.600097,"twenty":6.102063,"median":8.897322,"eighty":11.344513,"marketCap":522461465},{"date":"2025-10-17","current":34.913456,"twenty":6.102063,"median":8.942414,"eighty":11.379353,"marketCap":527193191},{"date":"2025-10-24","current":37.498671,"twenty":6.102063,"median":8.988406,"eighty":11.414328,"marketCap":566229935},{"date":"2025-10-31","current":36.049384,"twenty":6.102063,"median":9.055072,"eighty":11.467336,"marketCap":544345700},{"date":"2025-11-07","current":36.349687,"twenty":6.11434,"median":9.10368,"eighty":11.49155,"marketCap":548880271},{"date":"2025-11-14","current":35.804552,"twenty":6.130832,"median":9.149546,"eighty":11.560783,"marketCap":576453285},{"date":"2025-11-21","current":33.246214,"twenty":6.15763,"median":9.181107,"eighty":11.626545,"marketCap":535264040},{"date":"2025-11-28","current":36.182211,"twenty":6.172568,"median":9.204192,"eighty":11.664153,"marketCap":582533602},{"date":"2025-12-05","current":34.172088,"twenty":6.211797,"median":9.232378,"eighty":11.692348,"marketCap":550170624},{"date":"2025-12-12","current":35.646179,"twenty":6.238321,"median":9.272797,"eighty":11.749498,"marketCap":573903474},{"date":"2025-12-19","current":34.269549,"twenty":6.264086,"median":9.301863,"eighty":11.812526,"marketCap":551739738},{"date":"2025-12-26","current":33.197483,"twenty":6.299161,"median":9.326196,"eighty":11.858242,"marketCap":534479483},{"date":"2026-01-02","current":32.99038,"twenty":6.330426,"median":9.348368,"eighty":11.914214,"marketCap":531145116},{"date":"2026-01-09","current":33.648238,"twenty":6.377585,"median":9.389005,"eighty":11.942862,"marketCap":541736636},{"date":"2026-01-16","current":35.621813,"twenty":6.444395,"median":9.411748,"eighty":11.989443,"marketCap":573511196},{"date":"2026-01-23","current":35.877647,"twenty":6.51107,"median":9.430051,"eighty":12.03256,"marketCap":577630120},{"date":"2026-01-30","current":36.084751,"twenty":6.552397,"median":9.454982,"eighty":12.060911,"marketCap":580964488},{"date":"2026-02-06","current":38.375073,"twenty":6.658583,"median":9.472835,"eighty":12.160911,"marketCap":617838669},{"date":"2026-02-13","current":41.68873,"twenty":6.753437,"median":9.486928,"eighty":12.253286,"marketCap":671188547},{"date":"2026-02-20","current":42.16385,"twenty":6.77957,"median":9.497929,"eighty":12.298871,"marketCap":678837978},{"date":"2026-02-27","current":12.93811,"twenty":6.823213,"median":9.514159,"eighty":12.423253,"marketCap":724534178},{"date":"2026-03-06","current":13.333721,"twenty":6.894802,"median":9.535761,"eighty":12.499508,"marketCap":746688353},{"date":"2026-03-13","current":13.102257,"twenty":6.973567,"median":9.552734,"eighty":12.546072,"marketCap":733726377},{"date":"2026-03-20","current":13.13382,"twenty":7.024807,"median":9.56176,"eighty":12.594321,"marketCap":735493919},{"date":"2026-03-27","current":13.596748,"twenty":7.063725,"median":9.581732,"eighty":12.63752,"marketCap":761417870},{"date":"2026-04-02","current":13.000833,"twenty":7.074158,"median":9.600225,"eighty":12.697315,"marketCap":728046634},{"date":"2026-04-10","current":12.790195,"twenty":7.128103,"median":9.616118,"eighty":12.783155,"marketCap":716250925},{"date":"2026-04-17","current":12.769477,"twenty":7.200469,"median":9.619231,"eighty":12.879658,"marketCap":715090691},{"date":"2026-04-24","current":13.34614,"twenty":7.230143,"median":9.628657,"eighty":12.923046,"marketCap":747383862},{"date":"2026-05-01","current":14.098911,"twenty":7.318959,"median":9.650344,"eighty":12.960087,"marketCap":789539019},{"date":"2026-05-08","current":14.212863,"twenty":7.37278,"median":9.671783,"eighty":13.03144,"marketCap":795920304},{"date":"2026-05-15","current":10.59249,"twenty":7.427265,"median":9.712159,"eighty":13.03144,"marketCap":815621740},{"date":"2026-05-22","current":9.898146,"twenty":7.460488,"median":9.725566,"eighty":13.03144,"marketCap":762157264},{"date":"2026-05-29","current":10.312754,"twenty":7.496369,"median":9.737575,"eighty":13.037039,"marketCap":794082095},{"date":"2026-06-05","current":10.530049,"twenty":7.529837,"median":9.749627,"eighty":13.03144,"marketCap":810813784},{"date":"2026-06-12","current":10.3702,"twenty":7.585053,"median":9.760593,"eighty":13.03144,"marketCap":798505415},{"date":"2026-06-18","current":10.902197,"twenty":7.65304,"median":9.775136,"eighty":13.03144,"marketCap":839469204},{"date":"2026-06-26","current":11.16445,"twenty":7.682806,"median":9.788147,"eighty":13.037039,"marketCap":859662622},{"date":"2026-07-02","current":11.129483,"twenty":7.738415,"median":9.796611,"eighty":13.037039,"marketCap":856970166},{"date":"2026-07-10","current":11.636504,"twenty":7.786699,"median":9.826824,"eighty":13.037039,"marketCap":896010773},{"date":"2026-07-17","current":12.250923,"twenty":7.842577,"median":9.877833,"eighty":13.037039,"marketCap":943321065},{"date":"2026-07-24","current":12.478208,"twenty":7.87237,"median":9.907392,"eighty":13.037039,"marketCap":960822026},{"date":"2026-07-31","current":12.233439,"twenty":7.901092,"median":9.932374,"eighty":13.042637,"marketCap":941974837},{"date":"2026-08-07","current":-11.388289,"twenty":7.94548,"median":9.952913,"eighty":13.042637,"marketCap":989642353},{"date":"2026-08-14","current":-10.058604,"twenty":7.94548,"median":9.952913,"eighty":13.042637,"marketCap":874092672},{"date":"2026-08-21","current":-9.984611,"twenty":7.94548,"median":9.952913,"eighty":13.042637,"marketCap":867662739},{"date":"2026-08-28","current":-10.080366,"twenty":7.94548,"median":9.952913,"eighty":13.042637,"marketCap":875983829},{"date":"2026-09-01","current":-9.982435,"twenty":7.94548,"median":9.952913,"eighty":13.042637,"marketCap":867473624}],"updateTime":1788380371864},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"KOP\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"21607291","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326005936-KOP","pdf_url":"","pub_time":1786507200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"KOP","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005936/0001959173-26-005936-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005936/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE3gmtcPfDgUQ5iGte","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-08-12 12:00","pubTimestamp":1786507200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21602130","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326005881-KOP","pdf_url":"","pub_time":1786420800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"KOP","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005881/0001959173-26-005881-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005881/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEEyh6UPpE3yYpeqSJ","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-08-11 12:00","pubTimestamp":1786420800,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21597762","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326005819-KOP","pdf_url":"","pub_time":1786334400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"KOP","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005819/0001959173-26-005819-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005819/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE3KLYTXUzjACcPxVZ","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-08-10 12:00","pubTimestamp":1786334400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21592582","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326005788-KOP","pdf_url":"","pub_time":1786075200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"KOP","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005788/0001959173-26-005788-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326005788/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE7aXBL5gCpFcmPxq4","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-08-07 12:00","pubTimestamp":1786075200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21585411","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000048-KOP","pdf_url":"","pub_time":1785988800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"KOP","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000048/0001315257-26-000048-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000048/kop-20260630.htm","primary":true,"translateUrl":"","linkName":"kop-20260630.htm","type":"10-Q","id":"NTFILECsH8jXmN4ikkV5fB","market":"us","size":1298261},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000048/a2026q210-qexx311.htm","primary":false,"translateUrl":"","linkName":"a2026q210-qexx311.htm","type":"EX-31.1","id":"NTFILEFZ1FxY5U2F8mz61Y","market":"us","size":9504},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000048/a2026q210-qexx312.htm","primary":false,"translateUrl":"","linkName":"a2026q210-qexx312.htm","type":"EX-31.2","id":"NTFILEsNLnLFwutEgfhfGB","market":"us","size":9530},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000048/a2026q210-qexx321.htm","primary":false,"translateUrl":"","linkName":"a2026q210-qexx321.htm","type":"EX-32.1","id":"NTFILE5wsbh97FYGdjgVfc","market":"us","size":5979},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000048/kop-20260630_g1.jpg","primary":false,"translateUrl":"","linkName":"kop-20260630_g1.jpg","type":"GRAPHIC","id":"NTFILE3VwA8pdyZVioAvAh","market":"us","size":126572}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2026-08-06 12:00","pubTimestamp":1785988800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21584648","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000046-KOP","pdf_url":"","pub_time":1785988800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"KOP","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000046/0001315257-26-000046-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000046/a2026q28-kearningsrelease.htm","primary":true,"translateUrl":"","linkName":"a2026q28-kearningsrelease.htm","type":"EX-99.1","id":"NTFILE5RxiqsTgF9GQAwLX","market":"us","size":358304},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000046/kop-20260806.htm","primary":false,"translateUrl":"","linkName":"kop-20260806.htm","type":"8-K","id":"NTFILEL4rzR3oZ7fuP5aSy","market":"us","size":25171},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000046/a1a.jpg","primary":false,"translateUrl":"","linkName":"a1a.jpg","type":"GRAPHIC","id":"NTFILE85T6ScRQQufEVcqA","market":"us","size":126572}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-08-06 12:00","pubTimestamp":1785988800,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21559986","market":"us","labels":[],"media":"sec.gov","original_id":"AN210011926001506-KOP","pdf_url":"","pub_time":1785470400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","symbol":"KOP","title":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000210011926001506/0002100119-26-001506-index.htm","us_notice_code":"Form SCHEDULE 13G/A","us_title_en":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000210011926001506/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G/A","id":"NTFILEJ9YoGccXRqTWCF14","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-07-31 12:00","pubTimestamp":1785470400,"title_zh":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21253879","market":"us","labels":[],"media":"sec.gov","original_id":"AN194104026000336-KOP","pdf_url":"","pub_time":1778644800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","symbol":"KOP","title":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000194104026000336/0001941040-26-000336-index.htm","us_notice_code":"Form SCHEDULE 13G/A","us_title_en":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1082327/000194104026000336/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G/A","id":"NTFILEJEJ7aT6KNokgMFRZ","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-13 12:00","pubTimestamp":1778644800,"title_zh":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21239462","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000041-KOP","pdf_url":"","pub_time":1778472000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"KOP","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000041/0001315257-26-000041-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000041/ex991cfomay2026.htm","primary":true,"translateUrl":"","linkName":"ex991cfomay2026.htm","type":"EX-99.1","id":"NTFILE8rcawDF2aHRFd7zX","market":"us","size":16180},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000041/kop-20260511.htm","primary":false,"translateUrl":"","linkName":"kop-20260511.htm","type":"8-K","id":"NTFILEEKnUTLAgwm3cwALm","market":"us","size":28088},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000041/a1a.jpg","primary":false,"translateUrl":"","linkName":"a1a.jpg","type":"GRAPHIC","id":"NTFILE9J2xSFtdQvuHrix6","market":"us","size":126572}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-05-11 12:00","pubTimestamp":1778472000,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21232647","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000038-KOP","pdf_url":"","pub_time":1778212800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"KOP","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/0001315257-26-000038-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/kop-20260331.htm","primary":true,"translateUrl":"","linkName":"kop-20260331.htm","type":"10-Q","id":"NTFILECgQQzEoprc2e4XFw","market":"us","size":940773},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/a2026q110-qex101.htm","primary":false,"translateUrl":"","linkName":"a2026q110-qex101.htm","type":"EX-10.1","id":"NTFILE5vVzPcC6yFAgkknV","market":"us","size":92333},{"description":"EX-10.3","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/a2026q110-qex103.htm","primary":false,"translateUrl":"","linkName":"a2026q110-qex103.htm","type":"EX-10.3","id":"NTFILEfdWHrRzsK4btRUUY","market":"us","size":54268},{"description":"EX-31.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/a2026q110-qexx311.htm","primary":false,"translateUrl":"","linkName":"a2026q110-qexx311.htm","type":"EX-31.1","id":"NTFILEEvjDzZLSvkC5d2CG","market":"us","size":9449},{"description":"EX-31.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/a2026q110-qexx312.htm","primary":false,"translateUrl":"","linkName":"a2026q110-qexx312.htm","type":"EX-31.2","id":"NTFILE3VrR8fd9N65eXqv9","market":"us","size":9522},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/a2026q110-qexx321.htm","primary":false,"translateUrl":"","linkName":"a2026q110-qexx321.htm","type":"EX-32.1","id":"NTFILEGmQoxE2uXg9Ww3j3","market":"us","size":5914},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000038/kop-20260331_g1.jpg","primary":false,"translateUrl":"","linkName":"kop-20260331_g1.jpg","type":"GRAPHIC","id":"NTFILE4MX6FZxhk5MrJ4sF","market":"us","size":126572}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2026-05-08 12:00","pubTimestamp":1778212800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21232215","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000036-KOP","pdf_url":"","pub_time":1778212800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"KOP","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000036/0001315257-26-000036-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 2.05: Cost Associated with Exit or Disposal Activities;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 5.07: Submission of Matters to a Vote of Security Holders;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000036/a2026q18-kearningsrelease.htm","primary":true,"translateUrl":"","linkName":"a2026q18-kearningsrelease.htm","type":"EX-99.1","id":"NTFILE2pbpwm1hcNDgKAXE","market":"us","size":292082},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000036/kop-20260507.htm","primary":false,"translateUrl":"","linkName":"kop-20260507.htm","type":"8-K","id":"NTFILEBuTnX1gbeaLq5rjP","market":"us","size":55480},{"description":"EX-99.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000036/a2026q18-kex992.htm","primary":false,"translateUrl":"","linkName":"a2026q18-kex992.htm","type":"EX-99.2","id":"NTFILEGmTpt9d3B4amGXLx","market":"us","size":18093},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000036/a1.jpg","primary":false,"translateUrl":"","linkName":"a1.jpg","type":"GRAPHIC","id":"NTFILEBN14e3WBguYkV4eK","market":"us","size":126572},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000036/a1a.jpg","primary":false,"translateUrl":"","linkName":"a1a.jpg","type":"GRAPHIC","id":"NTFILEG5KLVHju1PgNTReP","market":"us","size":126572}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-05-08 12:00","pubTimestamp":1778212800,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 2.05: Cost Associated with Exit or Disposal Activities;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 5.07: Submission of Matters to a Vote of Security Holders;\nItem 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21231719","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000034-KOP","pdf_url":"","pub_time":1778212800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form S-8 - Securities to be offered to employees in employee benefit plans","symbol":"KOP","title":"Form S-8 - Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/0001315257-26-000034-index.htm","us_notice_code":"Form S-8","us_title_en":"Form S-8 - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/s-82026.htm","primary":true,"translateUrl":"","linkName":"s-82026.htm","type":"S-8","id":"NTFILE2ZzuZCqqE3aAtcxy","market":"us","size":74452},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/s-82026ex51.htm","primary":false,"translateUrl":"","linkName":"s-82026ex51.htm","type":"EX-5.1","id":"NTFILE4ETLbLqGZwoJpphf","market":"us","size":7672},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/s-82026ex231.htm","primary":false,"translateUrl":"","linkName":"s-82026ex231.htm","type":"EX-23.1","id":"NTFILECAtT8aPmbvFQJY5z","market":"us","size":1946},{"description":"EX-99.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/s-82026ex992.htm","primary":false,"translateUrl":"","linkName":"s-82026ex992.htm","type":"EX-99.2","id":"NTFILE2WEN7zbaNqjw13Ly","market":"us","size":6580},{"description":"","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/exfilingfees.htm","primary":false,"translateUrl":"","linkName":"exfilingfees.htm","type":"EX-FILING FEES","id":"NTFILEEDNrAtktEG53pq2r","market":"us","size":20017},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/image.jpg","primary":false,"translateUrl":"","linkName":"image.jpg","type":"GRAPHIC","id":"NTFILEFBbtrcyWZnA1ECS9","market":"us","size":6820},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000034/image_1.jpg","primary":false,"translateUrl":"","linkName":"image_1.jpg","type":"GRAPHIC","id":"NTFILE429AkD8Yt6ep2Thg","market":"us","size":126572}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2026-05-08 12:00","pubTimestamp":1778212800,"title_zh":"Form S-8 - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21226176","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000030-KOP","pdf_url":"","pub_time":1778126400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K/A - Current report: [Amend]","symbol":"KOP","title":"Form 8-K/A - Current report: [Amend]","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000030/0001315257-26-000030-index.htm","us_notice_code":"Form 8-K/A","us_title_en":"Form 8-K/A - Current report: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000030/kop-20251105.htm","primary":true,"translateUrl":"","linkName":"kop-20251105.htm","type":"8-K/A","id":"NTFILE3odShNfqRZFsdKeg","market":"us","size":24658}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-05-07 12:00","pubTimestamp":1778126400,"title_zh":"Form 8-K/A - Current report: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21197331","market":"us","labels":[],"media":"sec.gov","original_id":"AN210011926000765-KOP","pdf_url":"","pub_time":1777521600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"KOP","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000210011926000765/0002100119-26-000765-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000210011926000765/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILE9QdpHgRpEpitZdrx","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-04-30 12:00","pubTimestamp":1777521600,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21104580","market":"us","labels":[],"media":"sec.gov","original_id":"AN201238326001453-KOP","pdf_url":"","pub_time":1777003200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","symbol":"KOP","title":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000201238326001453/0002012383-26-001453-index.htm","us_notice_code":"Form SCHEDULE 13G/A","us_title_en":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000201238326001453/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G/A","id":"NTFILEHZRS3F1pzubpSrqq","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-04-24 12:00","pubTimestamp":1777003200,"title_zh":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20856607","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000017-KOP","pdf_url":"","pub_time":1773866721000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K/A - Current report: [Amend]","symbol":"KOP","title":"Form 8-K/A - Current report: [Amend]","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/0001315257-26-000017-index.html","us_notice_code":"Form 8-K/A","us_title_en":"Form 8-K/A - Current report: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000017/kop-20260105.htm","primary":true,"translateUrl":"","linkName":"kop-20260105.htm","type":"8-K/A","id":"NTFILE6DWaeLFQRYuHjDU9","market":"us","size":27774}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-03-19 04:45","pubTimestamp":1773866721,"title_zh":"Form 8-K/A - Current report: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20784819","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326001645-KOP","pdf_url":"","pub_time":1772427600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"KOP","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000195917326001645/0001959173-26-001645-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1229771/000195917326001645/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEYonbUWhU8KTffMcg","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-03-02 13:00","pubTimestamp":1772427600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20769822","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000012-KOP","pdf_url":"","pub_time":1772082000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"KOP","title":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/0001315257-26-000012-index.htm","us_notice_code":"Form 10-K","us_title_en":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/kop-20251231.htm","primary":true,"translateUrl":"","linkName":"kop-20251231.htm","type":"10-K","id":"NTFILEG6ia1YdJeBofDg2M","market":"us","size":2352629},{"description":"EX-10.45","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1045.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1045.htm","type":"EX-10.45","id":"NTFILEB9aEVWhEnZwiS3nN","market":"us","size":97074},{"description":"EX-10.46","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1046.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1046.htm","type":"EX-10.46","id":"NTFILE2dQ8T59Mup7AuPbZ","market":"us","size":475975},{"description":"EX-10.47","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1047.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1047.htm","type":"EX-10.47","id":"NTFILEBVb5BEGg5KWGs77G","market":"us","size":443292},{"description":"EX-10.48","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1048.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1048.htm","type":"EX-10.48","id":"NTFILE3krYmCjsMR8vcabQ","market":"us","size":93356},{"description":"EX-10.49","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1049.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1049.htm","type":"EX-10.49","id":"NTFILEA9EK8HWX5Exd7qU3","market":"us","size":473540},{"description":"EX-10.50","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1050.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1050.htm","type":"EX-10.50","id":"NTFILE2vFX7rbMujRMzFxy","market":"us","size":441599},{"description":"EX-10.51","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex1051.htm","primary":false,"translateUrl":"","linkName":"a202510-kex1051.htm","type":"EX-10.51","id":"NTFILEGvErB6CC5nkK7g8j","market":"us","size":59959},{"description":"EX-19","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex19.htm","primary":false,"translateUrl":"","linkName":"a202510-kex19.htm","type":"EX-19","id":"NTFILEFJFogf9XLazToC6s","market":"us","size":142023},{"description":"EX-21","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex21.htm","primary":false,"translateUrl":"","linkName":"a202510-kex21.htm","type":"EX-21","id":"NTFILE8afu4iCRvyME8hDH","market":"us","size":38354},{"description":"EX-23.1","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex231.htm","primary":false,"translateUrl":"","linkName":"a202510-kex231.htm","type":"EX-23.1","id":"NTFILE3YarL51aCyekv3Bx","market":"us","size":2079},{"description":"EX-24","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex24.htm","primary":false,"translateUrl":"","linkName":"a202510-kex24.htm","type":"EX-24","id":"NTFILECJDyDj8qtb59aBww","market":"us","size":42015},{"description":"EX-31.1","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex311.htm","primary":false,"translateUrl":"","linkName":"a202510-kex311.htm","type":"EX-31.1","id":"NTFILEDsRmxcNYUda1kYng","market":"us","size":9115},{"description":"EX-31.2","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex312.htm","primary":false,"translateUrl":"","linkName":"a202510-kex312.htm","type":"EX-31.2","id":"NTFILE264rwRbbVoix214m","market":"us","size":8955},{"description":"EX-32.1","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/a202510-kex321.htm","primary":false,"translateUrl":"","linkName":"a202510-kex321.htm","type":"EX-32.1","id":"NTFILE8zp5Az9KsQ7fQ9Kr","market":"us","size":6677},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000012/kop-20251231_g1.jpg","primary":false,"translateUrl":"","linkName":"kop-20251231_g1.jpg","type":"GRAPHIC","id":"NTFILE5GL8eJNpM47T2R4x","market":"us","size":108803}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2026-02-26 13:00","pubTimestamp":1772082000,"title_zh":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20769413","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000010-KOP","pdf_url":"","pub_time":1772082000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"KOP","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000010/0001315257-26-000010-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000010/a2025q48-kearningsrelease.htm","primary":true,"translateUrl":"","linkName":"a2025q48-kearningsrelease.htm","type":"EX-99.1","id":"NTFILE8sXm4FnYEe25otNM","market":"us","size":359129},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000010/kop-20260226.htm","primary":false,"translateUrl":"","linkName":"kop-20260226.htm","type":"8-K","id":"NTFILED6kcNgGbQjkaX3PM","market":"us","size":25217},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000010/a1a.jpg","primary":false,"translateUrl":"","linkName":"a1a.jpg","type":"GRAPHIC","id":"NTFILE5uNDEtLLuTZZAgZT","market":"us","size":126572}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-02-26 13:00","pubTimestamp":1772082000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20619710","market":"us","labels":[],"media":"sec.gov","original_id":"AN131525726000004-KOP","pdf_url":"","pub_time":1767934800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"KOP","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000004/0001315257-26-000004-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000004/ex991cfo.htm","primary":true,"translateUrl":"","linkName":"ex991cfo.htm","type":"EX-99.1","id":"NTFILECxz59yw1uebb7VJ4","market":"us","size":16687},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000004/kop-20260105.htm","primary":false,"translateUrl":"","linkName":"kop-20260105.htm","type":"8-K","id":"NTFILE8QXfQrEk6BdEXa5G","market":"us","size":28432},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1315257/000131525726000004/a1.jpg","primary":false,"translateUrl":"","linkName":"a1.jpg","type":"GRAPHIC","id":"NTFILEC9VahKwNaE2Anz3V","market":"us","size":126572}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-01-09 13:00","pubTimestamp":1767934800,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":11,"pageCount":1,"totalSize":214,"code":"91000000","status":"200"}]}}