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Brief Summary of Workshop on the Future of the Montreal Protocol (Helsinki, October 2019) Updated 21.2.2023 Foreword This summary is updated from a version, which was sent to NEM before the MOP34.

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HEARING BEFORE THE COMMITTEE ON OVERSIGHT AND REFORM OF THE UNITED STATES HOUSE OF REPRESENTATIVES SUBCOMMITTEE ON THE ENVIRONMENT September 10, 2019 Testimony of Denise Rutherford, PhD Senior Vice President, Corporate Affairs, 3M Chairman Rouda, Ranking Member Comer, and distinguished members of the Subcommittee, thank you for the opportunity to appear before you today.

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FDA test report of the company's products Serial Number Sample Name Report Number 1 PTFE 1200D white sewing thread EG1512331018V01MVer.1.0 2 PTFE white staple fiber EG1512331019V02MVer.1.0 3 PTFE green sewing thread EG151231019V01MVer.2.0 4 PTFE 12000D yarn EG160826028V01MVer.1.0 5 PTFE white sewing thread A2200090001101001 6 PTFE white staple fiber A2210057913101001 7 PTFE fabric A2230383390101001 Report Date Jan.07,2016 Mar.14,2016 Sep.01,2016 Apr.28,2020 Mar.4,2021 Aug.7,2023

ELSEVIER Chemosphere 226 (2019) 898-906 Contents lists available at ScienceDirect Chemosphere journal homepage: www.elsevier.com/locate/chemosphere Waste incineration of Polytetrafluoroethylene (PTFE) to evaluate potential formation of per- and Poly-Fluorinated Alkyl Substances Chec updates (PFAS) in flue gas Krasimir Aleksandrov a, Hans-Joachim Gehrmann a, Manuela Hauser a, Hartmut Matzing a, Daniel Pigeon b. , Dieter Stapf a, Manuela Wexler a a Karlsruhe Institute of Technology, Karlsruhe, 76021, Germany b W.L.

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Company: REMBE Safety+Control GmbH (REMBE) Sector: process safety, explosion protection ECHA application for exemption for rupture discs containing PTFE, FEP or PFA: PFAS CAS-Nr.

ST-460 ToxDocs 13-430 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 13-430: ACUTE INHALATION TOXICITY STUDY OF MTDID 37312 IN MALE RATS FINAL REPORT ToxDocs Study Number 13-430 Test Material Lot Number(s) Strategic Tox Lab Study Number MTDID 37312 Lot 30107 (per GID 103988) ST-460 Other Identification Number(s) FC-10 19F/1H-NMR Analytical Report LIMS ## M13-1896 (see Appendix LIMS Number 1: Certificate of Analysis) Study Director Jill Hart, AAS, LATg Senior Laboratory Technologist Study Monitor Sue Chang, Ph.D.

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