Skip to main content
Koppers Holdings Inc. logo

Koppers Holdings Inc. — Investor Relations & Filings

Ticker · KOP ISIN · US50060P1066 US Manufacturing
Open in API
Filings indexed 1,539 across all filing types
Latest filing 2023-04-11 Capital/Financing Update
Country US United States of America
Listing US KOP

About Koppers Holdings Inc.

https://www.koppers.com/

Koppers Holdings Inc. is an integrated global provider of treated wood products, wood preservation chemicals, and carbon compounds. The company specializes in wood preservation technology, manufacturing pressure-treated products such as railroad crossties and utility poles for the railroad, utility, construction, and infrastructure industries. It also distills coal tar to produce carbon materials and chemicals, including carbon pitch and creosote. Koppers provides complementary services such as utility infrastructure maintenance, inspection, and environmentally responsible end-of-life management for treated wood. The company focuses on developing sustainable solutions supported by research and innovation.

Recent filings

Filing Released Lang Actions
8-K
Capital/Financing Update Classification · 95% confidence The document is a Form 8-K filed with the SEC, which is a current report used to announce major events that shareholders should know about. The content describes an amendment to a credit agreement, including new term loans and refinancing details. It includes detailed financing terms such as interest rates, repayment schedules, and covenants. This is a clear update on the company's financing activities rather than a full financial report or earnings release. The document is not an annual or quarterly report, nor is it a transcript or governance information. It is specifically about a material definitive agreement related to financing. Therefore, the appropriate classification is Capital/Financing Update (CAP). The document length and detail support a high confidence score.
2023-04-11 English
Regulatory Filings 2023
Regulatory Filings Classification · 90% confidence The provided document text appears to be encoded or encrypted and does not contain any readable content, keywords, regulatory headers, or references to specific report types, fiscal periods, or regulatory bodies. There is no indication of the document being a report itself or an announcement. Due to the lack of identifiable information and the fallback rule, the document should be classified as a Regulatory Filing (RNS), which serves as a general category for filings that do not fit into other specific categories.
2023-04-11 English
ARS
Annual Report
2023-04-03 English
DEF 14A
Proxy Solicitation & Information Statement
2023-04-03 English
FORM 4 SUBMISSION
Director's Dealing
2023-03-29 English
FORM 4 SUBMISSION
Director's Dealing
2023-03-29 English

Browse filings by year

17 years

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.