PARIS: Technip Energies (PARIS:TE) said on Thursday it has entered into a definitive agreement to acquire the Advanced Materials & Catalysts business from Ecovyst Inc. (NYSE:ECVT) for $556 million, expanding its catalyst technology portfolio and boosting recurring revenues. The deal, valued at an EBITDA multiple of approximately 9.8, includes Advanced Silicas and Zeolyst International—a…