Data compiled by Redley Lamar · ChainSifter Intelligence
3Suppliers
7Customers
1Debt Items
11Related Chains
Source-Backed Evidence Depth
Koppers Holdings Inc. (KOP) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.
12Total relationships
2Distinct source URLs
5High confidence
0.743Average confidence
2026-10-28Latest database update
ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.
Koppers Holdings Inc. Suppliers
Ticker
Name
Confidence
Evidence
TANGSHAN-IRON-STEEL-GROUP-CO-LTD
TANGSHAN-IRON-STEEL-GROUP-CO-LTD
80%
In July 2024, Koppers and Tangshan Iron & Steel Group Co. Ltd. (TISCO) signed an agreement to effectuate the ultimate liquidation of Koppers (China) Carbon & Chemical Company Limit
Reciprocal relationship from FMC graph: Reciprocal relationship from KOP graph: Reciprocal relationship from FMC graph: r sustainability goals annually in our sustainability report and CDP disclosure…
KOPPERS-INC
KOPPERS-INC
70%
Koppers Holdings Inc. depends on the dividends from the earnings of Koppers Inc. and its subsidiaries to generate the funds necessary to meet its financial obligations
Koppers Holdings Inc. Customers
Ticker
Name
Confidence
Evidence
CLASS-I-RAILROADS
CLASS-I-RAILROADS
90%
Through our RUPS business, we believe that we are the largest supplier of railroad crossties to the Class I railroads in North America
TEN-LARGEST-LUMBER-TREATING-COMPANIES-IN-THE-UNI
TEN-LARGEST-LUMBER-TREATING-COMPANIES-IN-THE-UNI
90%
PC supplies the ten largest lumber treating companies in the United States, the largest treated wood market in the world, in addition to four of the five largest lumber treating companies in Canada.
BROWN-WOOD-PRESERVING-COMPANY-INC
BROWN-WOOD-PRESERVING-COMPANY-INC
62%
osures. 49 Koppers Holdings Inc. 2024 Annual Report 3. Acquisitions, Divestitures and Discontinued Operations Acquisition – On April 1, 2024, we completed our acquisition of substantially all of the …
CHEMICAL-COMPANY-LIMITED
CHEMICAL-COMPANY-LIMITED
62%
assets acquired 82.2 Accounts payable and accrued liabilities 3.1 Current operating lease liabilities 1.1 Operating lease liabilities 1.3 Fair value of liabilities assumed 5.5 Goodwill $ 25.3 (1) The…
RAIN-CARBON-INC
RAIN-CARBON-INC
62%
have seen significant amounts of smelting capacity idled or closed over the last several years. In the United States, our primary coal tar raw material supply contracts have remaining terms ranging f…
STEEL-GROUP-CO-LTD
STEEL-GROUP-CO-LTD
62%
assets acquired 82.2 Accounts payable and accrued liabilities 3.1 Current operating lease liabilities 1.1 Operating lease liabilities 1.3 Fair value of liabilities assumed 5.5 Goodwill $ 25.3 (1) The…
Reciprocal relationship from VMI graph: Reciprocal relationship from KOP graph: Reciprocal relationship from VMI graph: Reciprocal relationship from KOP graph: Reciprocal relationship from VMI graph:…
Koppers Holdings Inc. Debt Obligations
Instrument
Description
Confidence
Evidence
KOP-DEBT
Debt stack $936.6M
90%
Market cache reports total debt of $936.6M.
Koppers Holdings Inc. Acquisitions
No acquisitions on recordNo completed or pending acquisitions found in our database for Koppers Holdings Inc..
Koppers Holdings Inc. Ownership
Holder
Name
Confidence
Evidence
KOP-OWNER-BLACKROCK-INC
BlackRock, Inc.
90%
13F overlay lists BlackRock, Inc. as top holder; 207 tracked holders.
Koppers Holdings Inc. Extended Supply Chain Network
