John Lemmex has been appointed chief financial officer of Bayer MaterialScience LLC. In this role, Lemmex is responsible for all finance and controlling activities in the NAFTA region. He also serves as a member of Bayer’s North American Leadership Team.

Lemmex, a native of Canada, joined Bayer nearly 25 years ago as a process chemist at a rubber operations plant in Sarnia, Ontario. He transitioned into a business analyst role in 1991, holding positions of increasing responsibility in the field of finance, controlling and accounting. Prior to taking on his new role, Lemmex spent several years at Bayer headquarters in Leverkusen, Germany, where he led the restructuring of the Bayer Polymers and MaterialScience controlling functions. Most recently, Lemmex served as vice president and controller of Bayer MaterialScience LLC.

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