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Ralph CALMES serves as the Chief Executive of Johnson Matthey since November 2019, focusing on hydrogen, fuel cells, renewable energy, and catalysis, with an execution plan that includes workforce development, joint development agreements, and industrial expansion. Prior to this, Ralph CALMES held various leadership roles at Imerys Performance Additives from 2011 to 2019, including Global VP General Manager overseeing talc, mica, and recycling polymer businesses across four major geographic regions. Ralph CALMES has extensive experience in purchasing, supply chain, and project management from previous positions at Imerys and Valeo, notably achieving significant cost savings and operational optimizations. Educational credentials include an MBA from HEC Paris.