Investor Relations

Customers come back to Koppers because they know they can depend on us for quality, timeliness and attention to detail.

SEC Filings

Filing date Form Description Filing Group View
S-8

Securities offered to employees pursuant to employee benefit plans

Registration Statements
8-K

Report of unscheduled material events or corporate event

Current Reports
EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
8-K

Report of unscheduled material events or corporate event

Current Reports
EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
10-Q

Quarterly report which provides a continuing view of a company's financial position

Quarterly Filings
EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
4

Statement of changes in beneficial ownership of securities

3,4,5
4

Statement of changes in beneficial ownership of securities

3,4,5
S-8

Securities offered to employees pursuant to employee benefit plans

Registration Statements
S-8

Securities offered to employees pursuant to employee benefit plans

Registration Statements
8-K

Report of unscheduled material events or corporate event

Current Reports
EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
10-Q

Quarterly report which provides a continuing view of a company's financial position

Quarterly Filings
EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
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