401k plan information for KOPPERS INC.

401k Sponsoring company profile

KOPPERS INC. has sponsored the creation of one or more 401k plans.

Company Name: KOPPERS INC.

Employer identification number (EIN): 251588399

NAIC Classification: 324190

Additional information about KOPPERS INC.

Jurisdiction of Incorporation:

Incorporation Date:

Company Identification Number:

More information about KOPPERS INC.

The following addresses have been detected on the 401k submissions:

USA Mailing Address

436 7TH AVENUE, SUITE 1500

PITTSBURGH

152191826

Date first seen: 2010-10-14

Date last seen: 2018-10-10

USA Mailing Address

436 SEVENTH AVENUE

SUITE 1500

PITTSBURGH

152191818

Date first seen: 2010-10-20

Date last seen: 2018-10-10

USA Mailing Address

436 SEVENTH AVENUE STE 1500

PITTSBURGH

15219

Date first seen: 2007-01-01

Date last seen: 2023-09-30

KOPPERS INC. 401k Plans

Plan id#	Plan Name	Plan Start Date	Plan Effective Date
517	KOPPERS INC. LTD PLAN FOR SALARIED EMPLOYEES	2015-01-01	1989-01-01
003	RETIREMENT PLAN FOR KOPPERS INC.	2015-01-01	1989-01-01
001	EMPLOYEE SAVINGS PLAN OF KOPPERS INC. AND SUBSIDIARIES	2009-01-01	1989-01-01
004	KOPPERS INC. SAVINGS PLAN FOR UNION HOURLY EMPLOYEES	2016-01-01	1995-11-01

401k Contributions

Contributions made to the plan for the plan year by employer(s) and employees. Schedule SB Part 4 Question 18. This is signed by an actuary:

Date Type of contribution Contribution Number of participants/employees Average contribution per participant
2023-09-08 Employer Contributions $ 670,000
2023-09-08 Employee Contributions $ 670,000
2020-12-17 Employer Contributions $ 3,022,000 1897 $ 1,593
2020-12-17 Employee Contributions $ 3,022,000 1897 $ 1,593
2017-09-14 Employer Contributions $ 7,000,000 856 $ 8,178
2017-09-14 Employee Contributions $ 7,000,000 856 $ 8,178
2014-07-15 Employer Contributions $ 2,500,000 655 $ 3,817
2014-07-15 Employee Contributions $ 2,500,000 655 $ 3,817
2014-06-16 Employer Contributions $ 2,000,000 655 $ 3,053
2014-06-16 Employee Contributions $ 2,000,000 655 $ 3,053
2014-05-15 Employer Contributions $ 2,000,000 655 $ 3,053
2014-05-15 Employee Contributions $ 2,000,000 655 $ 3,053
2014-04-15 Employer Contributions $ 2,000,000 655 $ 3,053
2014-04-15 Employee Contributions $ 2,000,000 655 $ 3,053
2014-03-14 Employer Contributions $ 2,000,000 655 $ 3,053
2014-03-14 Employee Contributions $ 2,000,000 655 $ 3,053
2014-02-01 Employer Contributions $ 2,000,000 655 $ 3,053
2014-02-01 Employee Contributions $ 2,000,000 655 $ 3,053
2013-10-15 Employer Contributions $ 2,000,000 727 $ 2,751
2013-10-15 Employee Contributions $ 2,000,000 727 $ 2,751
2013-09-13 Employer Contributions $ 2,000,000 727 $ 2,751
2013-09-13 Employee Contributions $ 2,000,000 727 $ 2,751
2013-08-15 Employer Contributions $ 2,000,000 727 $ 2,751
2013-08-15 Employee Contributions $ 2,000,000 727 $ 2,751
2013-07-15 Employer Contributions $ 1,800,000 727 $ 2,476
2013-07-15 Employee Contributions $ 1,800,000 727 $ 2,476
2013-06-17 Employer Contributions $ 2,000,000 727 $ 2,751
2013-06-17 Employee Contributions $ 2,000,000 727 $ 2,751
2013-05-15 Employer Contributions $ 2,000,000 727 $ 2,751
2013-05-15 Employee Contributions $ 2,000,000 727 $ 2,751
2013-04-15 Employer Contributions $ 1,800,000 727 $ 2,476
2013-04-15 Employee Contributions $ 1,800,000 727 $ 2,476
2013-03-15 Employer Contributions $ 2,500,000 727 $ 3,439
2013-03-15 Employee Contributions $ 2,500,000 727 $ 3,439
2013-01-30 Employer Contributions $ 3,500,000 727 $ 4,814
2013-01-30 Employee Contributions $ 3,500,000 727 $ 4,814
2012-12-14 Employer Contributions $ 2,000,000 1021 $ 1,959
2012-12-14 Employee Contributions $ 2,000,000 1021 $ 1,959
2012-11-15 Employer Contributions $ 2,000,000 1021 $ 1,959
2012-11-15 Employee Contributions $ 2,000,000 1021 $ 1,959
2012-10-15 Employer Contributions $ 2,000,000 1021 $ 1,959
2012-10-15 Employee Contributions $ 2,000,000 1021 $ 1,959
2012-09-14 Employer Contributions $ 1,133,333 1021 $ 1,110
2012-09-14 Employee Contributions $ 1,133,333 1021 $ 1,110
2012-08-15 Employer Contributions $ 1,133,333 1021 $ 1,110
2012-08-15 Employee Contributions $ 1,133,333 1021 $ 1,110
2012-07-13 Employer Contributions $ 1,133,333 1021 $ 1,110
2012-07-13 Employee Contributions $ 1,133,333 1021 $ 1,110
2012-06-15 Employer Contributions $ 1,133,333 1021 $ 1,110
2012-06-15 Employee Contributions $ 1,133,333 1021 $ 1,110
2012-05-15 Employer Contributions $ 1,633,333 1021 $ 1,600
2012-05-15 Employee Contributions $ 1,633,333 1021 $ 1,600
2012-04-13 Employer Contributions $ 1,900,000 1021 $ 1,861
2012-04-13 Employee Contributions $ 1,900,000 1021 $ 1,861
2011-12-15 Employer Contributions $ 847,208 893 $ 949
2011-12-15 Employee Contributions $ 847,208 893 $ 949
2011-11-15 Employer Contributions $ 847,208 893 $ 949
2011-11-15 Employee Contributions $ 847,208 893 $ 949
2011-10-14 Employer Contributions $ 847,208 893 $ 949
2011-10-14 Employee Contributions $ 847,208 893 $ 949
2011-09-16 Employer Contributions $ 847,208 893 $ 949
2011-09-16 Employee Contributions $ 847,208 893 $ 949
2011-09-15 Employer Contributions $ 1,022,684 893 $ 1,145
2011-09-15 Employee Contributions $ 1,022,684 893 $ 1,145
2011-08-30 Employer Contributions $ 1,022,684 893 $ 1,145
2011-08-30 Employee Contributions $ 1,022,684 893 $ 1,145
2011-08-15 Employer Contributions $ 847,208 893 $ 949
2011-08-15 Employee Contributions $ 847,208 893 $ 949
2011-07-30 Employer Contributions $ 1,022,685 893 $ 1,145
2011-07-30 Employee Contributions $ 1,022,685 893 $ 1,145
2011-07-15 Employer Contributions $ 2,118,020 893 $ 2,372
2011-07-15 Employee Contributions $ 2,118,020 893 $ 2,372
2011-06-30 Employer Contributions $ 1,022,685 893 $ 1,145
2011-06-30 Employee Contributions $ 1,022,685 893 $ 1,145
2011-04-15 Employer Contributions $ 2,118,020 893 $ 2,372
2011-04-15 Employee Contributions $ 2,118,020 893 $ 2,372
2011-03-31 Employer Contributions $ 53,000 893 $ 59
2011-03-31 Employee Contributions $ 53,000 893 $ 59
2011-01-14 Employer Contributions $ 1,254,269 893 $ 1,405
2011-01-14 Employee Contributions $ 1,254,269 893 $ 1,405
2010-10-15 Employer Contributions $ 1,254,269 945 $ 1,327
2010-10-15 Employee Contributions $ 1,254,269 945 $ 1,327
2010-09-15 Employer Contributions $ 488,553 945 $ 517
2010-09-15 Employee Contributions $ 488,553 945 $ 517
2010-07-15 Employer Contributions $ 1,254,269 945 $ 1,327
2010-07-15 Employee Contributions $ 1,254,269 945 $ 1,327
2010-04-15 Employer Contributions $ 1,254,269 945 $ 1,327
2010-04-15 Employee Contributions $ 1,254,269 945 $ 1,327
2010-03-31 Employer Contributions $ 56,000 945 $ 59
2010-03-31 Employee Contributions $ 56,000 945 $ 59
2010-01-01 Employer Contributions $ 134,000 945 $ 142
2010-01-01 Employee Contributions $ 134,000 945 $ 142

Date	Type of contribution	Contribution	Number of participants/employees	Average contribution per participant
2023-09-08	Employer Contributions	$ 670,000
2023-09-08	Employee Contributions	$ 670,000
2020-12-17	Employer Contributions	$ 3,022,000	1897	$ 1,593
2020-12-17	Employee Contributions	$ 3,022,000	1897	$ 1,593
2017-09-14	Employer Contributions	$ 7,000,000	856	$ 8,178
2017-09-14	Employee Contributions	$ 7,000,000	856	$ 8,178
2014-07-15	Employer Contributions	$ 2,500,000	655	$ 3,817
2014-07-15	Employee Contributions	$ 2,500,000	655	$ 3,817
2014-06-16	Employer Contributions	$ 2,000,000	655	$ 3,053
2014-06-16	Employee Contributions	$ 2,000,000	655	$ 3,053
2014-05-15	Employer Contributions	$ 2,000,000	655	$ 3,053
2014-05-15	Employee Contributions	$ 2,000,000	655	$ 3,053
2014-04-15	Employer Contributions	$ 2,000,000	655	$ 3,053
2014-04-15	Employee Contributions	$ 2,000,000	655	$ 3,053
2014-03-14	Employer Contributions	$ 2,000,000	655	$ 3,053
2014-03-14	Employee Contributions	$ 2,000,000	655	$ 3,053
2014-02-01	Employer Contributions	$ 2,000,000	655	$ 3,053
2014-02-01	Employee Contributions	$ 2,000,000	655	$ 3,053
2013-10-15	Employer Contributions	$ 2,000,000	727	$ 2,751
2013-10-15	Employee Contributions	$ 2,000,000	727	$ 2,751
2013-09-13	Employer Contributions	$ 2,000,000	727	$ 2,751
2013-09-13	Employee Contributions	$ 2,000,000	727	$ 2,751
2013-08-15	Employer Contributions	$ 2,000,000	727	$ 2,751
2013-08-15	Employee Contributions	$ 2,000,000	727	$ 2,751
2013-07-15	Employer Contributions	$ 1,800,000	727	$ 2,476
2013-07-15	Employee Contributions	$ 1,800,000	727	$ 2,476
2013-06-17	Employer Contributions	$ 2,000,000	727	$ 2,751
2013-06-17	Employee Contributions	$ 2,000,000	727	$ 2,751
2013-05-15	Employer Contributions	$ 2,000,000	727	$ 2,751
2013-05-15	Employee Contributions	$ 2,000,000	727	$ 2,751
2013-04-15	Employer Contributions	$ 1,800,000	727	$ 2,476
2013-04-15	Employee Contributions	$ 1,800,000	727	$ 2,476
2013-03-15	Employer Contributions	$ 2,500,000	727	$ 3,439
2013-03-15	Employee Contributions	$ 2,500,000	727	$ 3,439
2013-01-30	Employer Contributions	$ 3,500,000	727	$ 4,814
2013-01-30	Employee Contributions	$ 3,500,000	727	$ 4,814
2012-12-14	Employer Contributions	$ 2,000,000	1021	$ 1,959
2012-12-14	Employee Contributions	$ 2,000,000	1021	$ 1,959
2012-11-15	Employer Contributions	$ 2,000,000	1021	$ 1,959
2012-11-15	Employee Contributions	$ 2,000,000	1021	$ 1,959
2012-10-15	Employer Contributions	$ 2,000,000	1021	$ 1,959
2012-10-15	Employee Contributions	$ 2,000,000	1021	$ 1,959
2012-09-14	Employer Contributions	$ 1,133,333	1021	$ 1,110
2012-09-14	Employee Contributions	$ 1,133,333	1021	$ 1,110
2012-08-15	Employer Contributions	$ 1,133,333	1021	$ 1,110
2012-08-15	Employee Contributions	$ 1,133,333	1021	$ 1,110
2012-07-13	Employer Contributions	$ 1,133,333	1021	$ 1,110
2012-07-13	Employee Contributions	$ 1,133,333	1021	$ 1,110
2012-06-15	Employer Contributions	$ 1,133,333	1021	$ 1,110
2012-06-15	Employee Contributions	$ 1,133,333	1021	$ 1,110
2012-05-15	Employer Contributions	$ 1,633,333	1021	$ 1,600
2012-05-15	Employee Contributions	$ 1,633,333	1021	$ 1,600
2012-04-13	Employer Contributions	$ 1,900,000	1021	$ 1,861
2012-04-13	Employee Contributions	$ 1,900,000	1021	$ 1,861
2011-12-15	Employer Contributions	$ 847,208	893	$ 949
2011-12-15	Employee Contributions	$ 847,208	893	$ 949
2011-11-15	Employer Contributions	$ 847,208	893	$ 949
2011-11-15	Employee Contributions	$ 847,208	893	$ 949
2011-10-14	Employer Contributions	$ 847,208	893	$ 949
2011-10-14	Employee Contributions	$ 847,208	893	$ 949
2011-09-16	Employer Contributions	$ 847,208	893	$ 949
2011-09-16	Employee Contributions	$ 847,208	893	$ 949
2011-09-15	Employer Contributions	$ 1,022,684	893	$ 1,145
2011-09-15	Employee Contributions	$ 1,022,684	893	$ 1,145
2011-08-30	Employer Contributions	$ 1,022,684	893	$ 1,145
2011-08-30	Employee Contributions	$ 1,022,684	893	$ 1,145
2011-08-15	Employer Contributions	$ 847,208	893	$ 949
2011-08-15	Employee Contributions	$ 847,208	893	$ 949
2011-07-30	Employer Contributions	$ 1,022,685	893	$ 1,145
2011-07-30	Employee Contributions	$ 1,022,685	893	$ 1,145
2011-07-15	Employer Contributions	$ 2,118,020	893	$ 2,372
2011-07-15	Employee Contributions	$ 2,118,020	893	$ 2,372
2011-06-30	Employer Contributions	$ 1,022,685	893	$ 1,145
2011-06-30	Employee Contributions	$ 1,022,685	893	$ 1,145
2011-04-15	Employer Contributions	$ 2,118,020	893	$ 2,372
2011-04-15	Employee Contributions	$ 2,118,020	893	$ 2,372
2011-03-31	Employer Contributions	$ 53,000	893	$ 59
2011-03-31	Employee Contributions	$ 53,000	893	$ 59
2011-01-14	Employer Contributions	$ 1,254,269	893	$ 1,405
2011-01-14	Employee Contributions	$ 1,254,269	893	$ 1,405
2010-10-15	Employer Contributions	$ 1,254,269	945	$ 1,327
2010-10-15	Employee Contributions	$ 1,254,269	945	$ 1,327
2010-09-15	Employer Contributions	$ 488,553	945	$ 517
2010-09-15	Employee Contributions	$ 488,553	945	$ 517
2010-07-15	Employer Contributions	$ 1,254,269	945	$ 1,327
2010-07-15	Employee Contributions	$ 1,254,269	945	$ 1,327
2010-04-15	Employer Contributions	$ 1,254,269	945	$ 1,327
2010-04-15	Employee Contributions	$ 1,254,269	945	$ 1,327
2010-03-31	Employer Contributions	$ 56,000	945	$ 59
2010-03-31	Employee Contributions	$ 56,000	945	$ 59
2010-01-01	Employer Contributions	$ 134,000	945	$ 142
2010-01-01	Employee Contributions	$ 134,000	945	$ 142

Potentially Related 401k Schemes

KOPPERS CHOCOLATE SPECIALTY CO. INC [EIN = 135542133]

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Company Name:	KOPPERS INC.
Employer identification number (EIN):	251588399
NAIC Classification:	324190

Jurisdiction of Incorporation:
Incorporation Date:
Company Identification Number: