Koppers Highlights Sustainability Achievements Including Notable Greenhouse Gas Reduction

SEC Filings
Filing date Form Description Filing Group View
SC 13G/A

An amendment to the SC 13G filing

Other
4

Statement of changes in beneficial ownership of securities

3,4,5
8-K

Report of unscheduled material events or corporate event

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

Annual report which provides a comprehensive overview of the company for the past year

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

Statement of changes in beneficial ownership of securities

3,4,5
4/A

Amendment to a previously filed 4

3,4,5
4/A

Amendment to a previously filed 4

3,4,5
4/A

Amendment to a previously filed 4

3,4,5
4/A

Amendment to a previously filed 4

3,4,5
4/A

Amendment to a previously filed 4

3,4,5