Koppers Inc.

Previous Annual Report Submissions

• 2/2/2025 (PDF)
  • Annual Report
  • CA202503300127
  • Fiscal Date 12/31/2024
  • Committed Yes
• 2/19/2024 (PDF)
  • Annual Report
  • CA202405004410
  • Fiscal Date 12/31/2023
  • Committed Yes
• 2/25/2023 (PDF)
  • Annual Report
  • CA202305600235
  • Fiscal Date 12/31/2022
  • Committed Yes
• 4/8/2022 (PDF)
  • Annual Report
  • CA202209800831
  • Fiscal Date 12/31/2021
  • Committed Yes
• 4/2/2021 (PDF)
  • Annual Report
  • CA202109200795
  • Fiscal Date 12/31/2020
  • Committed Yes
• 3/23/2020 (PDF)
  • Annual Report
  • CA202008300581
  • Fiscal Date 12/31/2019
  • Committed Yes
• 3/29/2019 (PDF)
  • Annual Report
  • CA201908807438
  • Fiscal Date 12/31/2018
  • Committed Yes
• 3/28/2018 (PDF)
  • Annual Report
  • CA201808703080
  • Fiscal Date 12/31/2017
  • Committed Yes
• 3/13/2017 (PDF)
  • Annual Report
  • CA201707200550
  • Fiscal Date 12/31/2016
  • Committed Yes
• 4/13/2016 (PDF)
  • Annual Report
  • CA201610406930
  • Fiscal Date 12/31/2015
  • Committed Yes
• 4/10/2015 (PDF)
  • Annual Report
  • CA201510000905
  • Fiscal Date 12/31/2014
  • Committed Yes
• 4/12/2014 (PDF)
  • Annual Report
  • CA201410200257
  • Fiscal Date 12/31/2013
  • Committed Yes
• 4/5/2013 (PDF)
  • Annual Report
  • CA201309500759
  • Fiscal Date 12/31/2012
  • Committed Yes
• 7/9/2012 (PDF)
  • Annual Report
  • 2012 059 00592
  • Fiscal Date 12/31/2010
  • Committed Yes
• 7/9/2012 (PDF)
  • Annual Report
  • CA201219100277
  • Fiscal Date 12/31/2011
  • Committed Yes
• 3/19/2012 (PDF)
  • Annual Report
  • CA201207901018
  • Fiscal Date 12/31/2003
  • Committed Yes
• 5/5/2010 (PDF)
  • Annual Report
  • CA201012504446
  • Fiscal Date 12/31/2004
  • Committed Yes
• 5/5/2010 (PDF)
  • Annual Report
  • CA201012504441
  • Fiscal Date 12/31/2005
  • Committed Yes
• 5/5/2010 (PDF)
  • Annual Report
  • CA201012504439
  • Fiscal Date 12/31/2006
  • Committed Yes
• 5/5/2010 (PDF)
  • Annual Report
  • CA201012504437
  • Fiscal Date 12/31/2007
  • Committed Yes
• 3/15/2010 (PDF)
  • Annual Report
  • C201007400194
  • Fiscal Date 12/31/2009
  • Committed Yes
• 3/19/2009 (PDF)
  • Annual Report
  • C200907800450
  • Fiscal Date 12/31/2008
  • Committed Yes
• 12/19/2003 (PDF)
  • Annual Report
  • 2003 300 00842
  • Fiscal Date 12/31/2002
  • Committed Yes
• 3/3/2003 (PDF)
  • Annual Report
  • 2002 308 00942
  • Fiscal Date 12/31/2001
  • Committed Yes
• 10/15/2001 (PDF)
  • Annual Report
  • 2001 288 00402
  • Fiscal Date 12/31/2000
  • Committed Yes
• 3/13/2000 (PDF)
  • Annual Report
  • 2000 073 20058
  • Fiscal Date 12/31/1999
  • Committed Yes
• 10/22/1999 (PDF)
  • Annual Report
  • 982951186
  • Fiscal Date 12/31/1997
  • Committed Yes
• 10/10/1999
  • Annual Report
  • CA201228400057
  • Fiscal Date 12/31/1998
  • Committed Yes
• 6/26/1997 (PDF)
  • Annual Report
  • 971770450
  • Fiscal Date
  • Committed Yes
• 6/4/1996 (PDF)
  • Annual Report
  • 961560514
  • Fiscal Date
  • Committed Yes
• 5/30/1995 (PDF)
  • Annual Report
  • 951500016
  • Fiscal Date
  • Committed Yes
• 6/13/1994 (PDF)
  • Annual Report
  • 941640022
  • Fiscal Date
  • Committed Yes
• 6/7/1993 (PDF)
  • Annual Report
  • 931580360
  • Fiscal Date
  • Committed Yes
• 6/16/1992 (PDF)
  • Annual Report
  • 921680116
  • Fiscal Date
  • Committed Yes
• 6/7/1991 (PDF)
  • Annual Report
  • 911580182
  • Fiscal Date
  • Committed Yes
• 3/17/1989 (PDF)
  • Creation Filing
  • 000038332
  • Fiscal Date
  • Committed Yes