Leadership appointments
Adam Days is a seasoned global business leader with more than 30 years of experience in the chemical industry. He joined Rhodia in 1994, before its acquisition by Solvay, and has since built deep expertise across the Silica business, spanning manufacturing, HSE, commercial leadership, R& I and sustainability. Over the course of his career, he has held leadership roles in the U.S. and Germany, with global and regional responsibilities across EMEA, North America and major international customers. Most recently, he served as Business Director for Silica, leading commercial, R&I and sustainability activities. His career reflects broad operational and customer-facing experience, strong team leadership, and a consistent focus on advancing business priorities and supporting growth within Solvay.
Stéphane Diaz is an experienced business leader with deep expertise in specialty chemicals, strategic marketing, new business development and innovation. Currently Global Business Director Rare Earth, he brings extensive commercial, strategy and R&I experience across Solvay, Rhodia and BASF. His career combines strong market insight, technical understanding and a proven ability to connect customer needs, innovation priorities and growth opportunities to support business performance.
Ziad Haddad is an experienced general manager and global business leader with a strong track record in the chemicals industry. Currently Global Business Director for Fluorine at Solvay, he brings broad international experience across North America and Asia, together with deep expertise in business development, product management, market strategy and commercial leadership. Over his career, he has held senior roles spanning fluorine, electronic chemicals, soda ash and derivatives, sales and marketing, account management and technical service.