John Steitz, President and Chief Executive Officer, Avantor Performance Materials.

PHILLIPSBURG, US: Specialty chemicals maker Avantor Performance Materials has named John Steitz as President and Chief Executive Officer. Steitz assumes leadership from Rajiv Gupta, who had been serving as the company’s CEO. Gupta remains Chairman of the board of Avantor, an Upper Saucon Township company owned by an affiliate of New Mountain Capital.

“I look forward to working closely with Avantor employees and management to ensure the continuation of the company’s growth trajectory. I’m eager to join the team and further establish Avantor’s position as a leading performance chemistries and materials provider in the markets and communities it serves,” said Steitz.

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