All Koppers Holdings articles
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Blog
Koppers appoints legal, sustainability chief
Koppers Holdings, an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds, today announced the election of Stephanie Apostolou as chief legal and sustainability officer and secretary.
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Blog
Koppers’ sustainability chief to retire
Koppers Holdings, an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds, announced the retirement of Leslie Hyde, senior vice president and chief sustainability officer, effective Mar. 31.
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ArticleSEC orders Koppers Holdings to pay $1.3M for disclosure failures
Koppers will pay $1.3 million to the Securities and Exchange Commission to settle allegations it failed to disclose material information about its debt in fiscal year 2019.