Koppers Inc.
Filings
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Creation Filing
- 3/17/1989
- 000038332
- Application for Certificate of Authority
- View Filing(PDF)
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Amendment
- 7/2/1990
- 000482201
- Change of Address of Registered Office/Agent
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Annual Report
- 6/7/1991
- 911580182
- View Filing(PDF)
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Annual Report
- 6/16/1992
- 921680116
- View Filing(PDF)
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Amendment
- 6/7/1993
- 931580360
- Change of Address of Registered Office/Agent
- View Filing(PDF)
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Annual Report
- 6/7/1993
- 931580360
- View Filing(PDF)
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Annual Report
- 6/13/1994
- 941640022
- View Filing(PDF)
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Annual Report
- 5/30/1995
- 951500016
- View Filing(PDF)
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Annual Report
- 6/4/1996
- 961560514
- View Filing(PDF)
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Annual Report
- 6/26/1997
- 971770450
- View Filing(PDF)
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Annual Report
- 10/10/1999
- CA201228400057
- Fiscal Date:12/31/1998
-
Annual Report
- 10/22/1999
- 982951186
- Fiscal Date:12/31/1997
- View Filing(PDF)
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Annual Report
- 3/13/2000
- 2000 073 20058
- Fiscal Date:12/31/1999
- View Filing(PDF)
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Annual Report
- 10/15/2001
- 2001 288 00402
- Fiscal Date:12/31/2000
- View Filing(PDF)
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Annual Report
- 3/3/2003
- 2002 308 00942
- Fiscal Date:12/31/2001
- View Filing(PDF)
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Name Change
- 5/28/2003
- 231479096
- Corporation Name Change (Foreign)
- View Filing(PDF)
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Amendment
- 9/4/2003
- C200324500493
- Change of Address of Registered Office/Agent
- View Filing(PDF)
-
Annual Report
- 12/19/2003
- 2003 300 00842
- Fiscal Date:12/31/2002
- View Filing(PDF)
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Annual Report
- 3/19/2009
- C200907800450
- Fiscal Date:12/31/2008
- View Filing(PDF)
-
Notice Annual Report
- 3/12/2010
- C201007128112
- ADM Notice
- View Filing(PDF)
-
Annual Report
- 3/15/2010
- C201007400194
- Fiscal Date:12/31/2009
- View Filing(PDF)
-
Annual Report
- 5/5/2010
- CA201012504437
- Fiscal Date:12/31/2007
- View Filing(PDF)
-
Annual Report
- 5/5/2010
- CA201012504439
- Fiscal Date:12/31/2006
- View Filing(PDF)
-
Annual Report
- 5/5/2010
- CA201012504441
- Fiscal Date:12/31/2005
- View Filing(PDF)
-
Annual Report
- 5/5/2010
- CA201012504446
- Fiscal Date:12/31/2004
- View Filing(PDF)
-
Notice Annual Report
- 5/5/2010
- CA201012504447
- View Filing(PDF)
-
Annual Report
- 3/19/2012
- CA201207901018
- Fiscal Date:12/31/2003
- View Filing(PDF)
-
Annual Report
- 7/9/2012
- CA201219100277
- Fiscal Date:12/31/2011
- View Filing(PDF)
-
Annual Report
- 7/9/2012
- 2012 059 00592
- Fiscal Date:12/31/2010
- View Filing(PDF)
-
Annual Report
- 4/5/2013
- CA201309500759
- Fiscal Date:12/31/2012
- View Filing(PDF)
-
Annual Report
- 4/12/2014
- CA201410200257
- Fiscal Date:12/31/2013
- View Filing(PDF)
-
Annual Report
- 4/10/2015
- CA201510000905
- Fiscal Date:12/31/2014
- View Filing(PDF)
-
Annual Report
- 4/13/2016
- CA201610406930
- Fiscal Date:12/31/2015
- View Filing(PDF)
-
Annual Report
- 3/13/2017
- CA201707200550
- Fiscal Date:12/31/2016
- View Filing(PDF)
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Amendment
- 6/19/2017
- C201717001414
- Change of Address of Registered Office/Agent
- View Filing(PDF)
-
Annual Report
- 3/28/2018
- CA201808703080
- Fiscal Date:12/31/2017
- View Filing(PDF)
-
Annual Report
- 3/29/2019
- CA201908807438
- Fiscal Date:12/31/2018
- View Filing(PDF)
-
Annual Report
- 3/23/2020
- CA202008300581
- Fiscal Date:12/31/2019
- View Filing(PDF)
-
Annual Report
- 4/2/2021
- CA202109200795
- Fiscal Date:12/31/2020
- View Filing(PDF)
-
Annual Report
- 4/8/2022
- CA202209800831
- Fiscal Date:12/31/2021
- View Filing(PDF)
-
Annual Report
- 2/25/2023
- CA202305600235
- Fiscal Date:12/31/2022
- View Filing(PDF)
-
Annual Report
- 2/19/2024
- CA202405004410
- Fiscal Date:12/31/2023
- View Filing(PDF)
-
Annual Report
- 2/2/2025
- CA202503300127
- Fiscal Date:12/31/2024
- View Filing(PDF)