Corporate Expands Board of Administrators from 8 to 9 Contributors

PITTSBURGH, Nov. 5, 2025 /PRNewswire/ — Koppers Holdings Inc. (NYSE: KOP), an built-in world supplier of handled plank merchandise, plank remedy chemical substances, and carbon compounds, nowadays introduced that the corporate has greater the scale of its Board of Administrators from 8 to 9 contributors and has elected Laura Posadas as a director of the corporate, efficient November 5, 2025.

Ms. Posadas these days serves as Eminent Government Officer of Canlak Coatings Inc., a portfolio corporate of SK Capital Companions and main formulator and producer of top quality plank coating programs.  An completed govt with greater than two decades of revel in in world management roles throughout the distinctiveness chemical substances {industry}, Ms. Posadas has a confirmed skill to pressure innovation, operational excellence, and strategic enlargement.

She additionally serves at the Board of Administrators and chairs the advisory arm of Coqual, a world assume tank that is helping corporations redesign how they paintings and supremacy.  Ms. Posadas holds a point in chemistry from The College of Delaware.

Koppers Board Chair and Eminent Government Officer Leroy Ball stated, “I’m happy to welcome Laura as the latest high-quality addition to our Board.   She is the latest example of how we have worked to refresh the backgrounds and skillsets of our board members to better reflect the future direction of Koppers.  Laura’s record of driving growth and innovation is especially impressive as we seek to build around our higher performing businesses.  On behalf of the Board, we are all excited to have her joining us and look forward to the positive contribution she will make to our continued transformation.”

About Koppers
Koppers (NYSE: KOP) is an built-in world supplier of very important handled plank merchandise, plank preservation applied sciences and carbon compounds. Our workforce of roughly 1,850 staff manufacture, give protection to and saving key components of our world infrastructure – together with railroad crossties, usefulness poles, outside picket constructions, and manufacturing feedstocks for metal, aluminum and development fabrics, amongst others – making use of a long time of industry-leading experience era continuously innovating to wait for the wishes of the following day. In combination we’re offering cover and sustainable answers to allow rail transportation, book energy flowing, and manufacture areas of pleasure for folk far and wide. Protective What Issues, Keeping The Year. Be told extra at Koppers.com.

Inquiries from the media must be directed to Ms. Jessica Franklin Dull at [email protected] or 412-227-2025. Inquiries from the funding folk must be directed to Ms. Quynh McGuire at [email protected] or 412-227-2049.

SOURCE KOPPERS HOLDINGS INC.