Strength 1 Leading Market Share We hold the leading market share of key materials essential to society, including PVC and semiconductor silicon.

Impact of fluorinated refrigerants and their degradation products on the environment and health February, 2021 Report and statement of the downsides of HFO refrigerant usage -Impact of fluorochemical refrigerants and their degradation products on the environment and health- Published on: 22.02.2021 Refolution Industrieklte GmbH, Karpatenstrae 26 ,76227 Karlsruhe Geschftsfhrer: Thomas Frank, Handelsregister Mannheim: HRB 733782 USt-ID: DE324935121 Impact of fluorinated refrigerants and their degradation products on the environment and health February, 2021 Abstract Refrigerants with a high Global Warming Potential (GWP) are phased out step by step by regulations such as the international Kigali amendment of the Montreal Protocol or the EU F-Gas-regulation.

Janna Bouviev, Environmental Team Lead.

NEICVP1493E01 NEIC CIVIL INVESTIGATION REPORT Clean Harbors Environmental Services, Inc. 51 Broderick Road Bristol, Connecticut 06010 Investigation Dates: December 6 - 13, 2022 Weaver Weaver, Megan Digitally signed by , Megan 12:26:41 -06'00' Date: 2023.07.17 Megan Weaver, P.E.