Ashland Inc. announced that Karl Bostaph, senior vice president, operations will retire on October 1, 2025. To ensure a flawless transition, effective immediately, Wayne Muil, global director, operations, specialty additives, will assume the role of senior vice president, operations, reporting to Guillermo Novo, chair and chief executive officer, Ashland.

Bostaph joined Hercules in 1990 which was acquired by Ashland in 2008. Over the course of his career at Ashland, Bostaph held roles in research and development, quality, engineering and process technology, and manufacturing at multiple U.S. locations. He also spent a portion of his career at manufacturing facilities outside of the United States in several regional and global leadership positions.

Last year, Bostaph led operations as the company finalized its portfolio optimization initiatives, and most recently led the Ashland operations teams through a high-impact footprint optimization initiative. Until his retirement, Bostaph will serve as a special advisor for operations, working with Muil. Together they will ensure no disruption for customers and a seamless passage for operations and commercial business teams.

Muil joined Ashland in 2024. He is a globally experienced operations executive with more than 25 years of experience with a distinguished track record of leading complex manufacturing and supply chain organizations across the chemical industry. His senior roles at multinational companies include tenure as vice president, manufacturing and engineering at Sadara Chemical Co., a joint venture between Saudi Aramco and Dow Chemical.

Known for his strategic vision, disciplined execution, and ability to build high-performing, multicultural teams, Muil’s expertise spans environmental health and safety, process safety, ESG, Lean Six Sigma, and capital project execution. He is a trusted advisor to executive leadership and boards, with deep experience in regulatory compliance, union negotiations, and stakeholder engagement. Muil holds a reputation for delivering sustainable growth and operational transformation in both mature and emerging markets.

Muil will oversee Ashland’s global network of production facilities and tolling partners to drive operational excellence, safety, and innovation across the Americas, Europe, and Asia-Pacific. He holds a Master of Business Administration from the University of Stellenbosch, Cape Town South Africa, and a Bachelor of Science in Chemical Engineering from the University of Natal, Durban South Africa.

“I want to thank Karl for his significant contributions and many years of service to Ashland, and congratulate Wayne on his new role,” said Guillermo Novo, chair and chief executive officer, Ashland. “I am confident that together, Karl and Wayne will ensure a smooth and seamless transition, to continue building an exciting future for Ashland.”

Learn more about Ashland at www.ashland.com.