HarbisonWalker, Calderys Merge to Form Global Refractories Provider

Following the completion of HarbisonWalker International’s acquisition by Platinum Equity by way of a merger agreement, the investment firm confirmed Calderys and HarbisonWalker will join forces to create a leading world-class refractories solutions provider.

Michel Cornelissen, currently president and CEO of Calderys, is appointed Global CEO of the combined company, effective immediately.

“We have a tremendous opportunity to bring together the best of both companies to create a high-growth, customer-centric refractories provider with global scale,” Cornelissen said. “Our goal is to be the best partner for our customers anywhere in the world, to support them in their energy transition needs, and to set a new benchmark for the industry.”

HarbisonWalker’s headquarters will remain in Pittsburgh as the headquarters of the combined company’s Americas region operations.

“The HarbisonWalker brand is highly respected and vital to the long-term success of the combined company,” said Platinum Equity Partner Louis Samson. “We will continue investing in its growth and expansion in the Americas.”

Formerly the High Temperature Solutions business area of Imerys, Calderys became an independent company owned by Platinum Equity on Jan. 31, 2023.

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