Apr 25, 2023 Comment on Proposed Restriction of PFAS Conference of Fluoro-Chemical Product Japan (FCJ) On behalf of chemical manufacturers, we, Conference of Fluoro-Chemical Product Japan (FCJ), have been working tirelessly to comply with national chemical regulations.

Organisation for Economic Co-operation and Development Unclassified ENVIRONMENT DIRECTORATE CHEMICALS AND BIOTECHNOLOGY COMMITTEE ENV/CBC/MONO(2021)25 English - Or.

Broad Definitions of PFAS may Classify PVDF Membranes as PFAS Compounds PVDF IS WIDELY USED FOR MEMBRANE WATER AND WASTEWATER TREATMENT Polyvinylidene fluoride (PVDF) is a widely used material in the manufacturing of ultrafiltration (UF), microfiltration (MF), and membrane bioreactor (MBR) treatment systems.

General Comments for Annex XV restriction report on Per- and polyfluoroalkyl substances (PFAS) 22 May 2023 We welcome the opportunity to contribute to the public consultation initiated by the European Chemicals Agency regarding potential restriction of Per- and polyfluoroalkyl substances (PFAS) according to Regulation (EC) No. 1907/2006 ("REACH").

Science /11AAAS Supplementary Materials for Low-temperature mineralization of perfluorocarboxylic acids Brittany Trang et al.

SIA PFAS Consortium The Impact of a Potential PFAS Restriction on the Semiconductor Sector Report No. 2022-0737 Rev. 0 Project No.

REACH-Beschrnkungsvorschlag von PFAS Vorschlag vom 07.02.2023 fr eine Beschrnkung von per- und polyfluorierten Stoffen (PFAS) - - - VCI fr eine langfristige Anwendungs-, Planungs- sowie Innovationssicherheit sorgen.

PFAS 2023 8 25 JVMA JVMAPFAS 1. 1954 70 115 68 4 - - - - - PFAS 2.

Comments on ECHA's proposed restriction for PFAS Director, Material Industries Division, Manufacturing Industries Bureau, Ministry of Economy, Trade and Industry of Japan is closely following ECHA's proposed resiriction for perfiuoroalkyl compounds and polyfiuoroalkyl substances (PFASS), published on March 22, 2023, and submits the following comments for consideration and appropriate action.

References (Ref. 1) Healy, J.; Hayden, C.; Xie, T.; Olson, K.; Waldo, R.; Brundage, M.; Gasteiger, H.; Abbott, J.

Challenges of data center thermal management The need for more performance from computer equipment in data centers has driven the power consumed to levels that are straining thermal management in the centers.

Comment on Proposed Restriction of PFAS Aug 25, 2023 Japan Valve Manufactures' Association (JVMA) Japan Valve Manufacturers Association (JVMA) appreciates the opportunity to provide comments to the PFAS restriction proposal. 1.

SCHMIDT + BARTL Materials & Chemical Resistance Information PTFE TFM Chemical Designation: Norm: PTFE TFM Polytetrafluorethylen PTFE TFM chemical: chemical formula: chemical group: acetaldehyde {CH3CHO} AUK CAS-No.: 75-07-0 Conc.: Value: Temp.: 40 % RT Value: Resistance: C resistant Conc.: Value: Temp.: 40 % 50 Value: Resistance: C resistant Conc.: Value: Temp.: 40 % 75 Value: Resistance: C resistant Conc.: Value: Temp.: 40 % 100 Value: Resistance: C resistant Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Syn-No.: Remarks: Remarks: Remarks: Remarks: Remarks: Remarks: Remarks: Remarks: chemical: chemical formula: chemical group: Acetamide {CH3CONH2} AMID CAS-No.: 60-35-5 Syn-No.: Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Remarks: technical pure SCHMIDT + BARTL GMBH - AUF HERDENEN 30 - 78052 VS-VILLINGEN - TEL: 07721/99130 - FAX 07721/991320 Effective: 29.05.2016 www.schmidt-bartl.de e-mail: Mschmidt-bartl.de Side 1 of 128 PTFE TFM chemical: chemical formula: chemical group: Acetamide ICH3CONH2I AMID CAS-No.: 60-35-5 Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Syn-No.: Remarks: technical pure chemical: chemical formula: chemical group: Acetic acid ICH3COOHI ORAC CAS-No.: 64-19-7 Conc.: Value: Temp.: 10 % RT Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 50 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 75 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 100 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 125 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 150 Value: Resistance: C resistant Conc.: Value: Temp.: 50 % RT Value: Resistance: C resistant Conc.: Value: Temp.: 50 % 75 Value: Resistance: C resistant Conc.: Value: Temp.: 50 % 100 Value: Resistance: C resistant Conc.: Value: Temp.: 50 % 125 Value: Resistance: C resistant Conc.: Value: Temp.: 50 % 150 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 25 Value: Resistance: C resistant Conc.: Value: Temp.: UV cyo 50 Value: Resistance: C resistant Conc.: Value: Temp.: UV cyo 75 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Conc.: Value: Temp.: UV cyo 125 Value: Resistance: C resistant Syn-No.: Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: aqueous Remarks: technical pure Remarks: technical pure Remarks: technical pure Remarks: technical pure Remarks: technical pure Effective: SCHMIDT + BARTL GMBH - AUF HERDENEN 30 - 78052 VS-VILLINGEN - TEL: 07721/99130 - FAX 07721/991320 29.05.2016 www.schmidt-bartl.de e-mail: Mschmidt-bartl.de Side 2 of 128 PTFE TFM chemical: chemical formula: chemical group: Acetic acid {CH3COOH} ORAC CAS-No.: 64-19-7 Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Syn-No.: Remarks: technical pure chemical: chemical formula: chemical group: acetone {CH3COCH3 - C3H6O} AL/K CAS-No.: 67-64-1 Conc.: Value: Temp.: 10 % 50 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 75 Value: Resistance: C resistant Conc.: Value: Temp.: 10 cyo 100 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 125 Value: Resistance: C resistant Conc.: Value: Temp.: 10 % 150 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Syn-No.: Remarks: Remarks: Remarks: Remarks: Remarks: Remarks: technical pure Remarks: technical pure Remarks: technical pure Remarks: technical pure Remarks: technical pure chemical: chemical formula: chemical group: Acetonitrile {CH3CN} NITR CAS-No.: 75-05-08 Syn-No.: Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV cyo 100 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Remarks: Effective: SCHMIDT + BARTL GMBH - AUF HERDENEN 30 - 78052 VS-VILLINGEN - TEL: 07721/99130 - FAX 07721/991320 29.05.2016 www.schmidt-bartl.de e-mail: Mschmidt-bartl.de Side 3 of 128 PTFE TFM chemical: chemical formula: chemical group: Acetonitrile {CH3CN} NITR CAS-No.: 75-05-08 Syn-No.: Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Remarks: chemical: chemical formula: chemical group: Acetophenone IC6H5COCH31 ARHC CAS-No.: 98-86-2 Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Syn-No.: Remarks: Remarks: Remarks: Remarks: Remarks: Remarks: chemical: chemical formula: chemical group: Acetyl chloride ICH3COCII CFHC CAS-No.: 75-36-5 Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Syn-No.: Remarks: Remarks: Remarks: Remarks: Remarks: chemical: chemical formula: chemical group: Acrylic acid ICH2CHCOOHI ORAC CAS-No.: 79-10-7 Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Syn-No.: Remarks: Remarks: Effective: SCHMIDT + BARTL GMBH - AUF HERDENEN 30 - 78052 VS-VILLINGEN - TEL: 07721/99130 - FAX 07721/991320 29.05.2016 www.schmidt-bartl.de e-mail: Mschmidt-bartl.de Side 4 of 128 PTFE TFM chemical: chemical formula: chemical group: Acrylic acid {CH2CHCOOH} ORAC CAS-No.: 79-10-7 Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Syn-No.: Remarks: Remarks: Remarks: Remarks: chemical: chemical formula: chemical group: Acrylonitrile {CH2:CHCN } N ITR CAS-No.: 107-13-1 Syn-No.: Conc.: Value: Temp.: UV 0/0 RT Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV 0/0 50 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Remarks: technical pure Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Remarks: technical pure chemical: chemical formula: chemical group: Allyl alcohol {CH2:CHCH2OH} ORAC CAS-No.: 107-18-6 Syn-No.: Conc.: Value: Temp.: 96 % RT Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: 96 % 50 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: 96 % 75 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: 96 % 100 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: 96 % 125 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: 96 % 150 Value: Resistance: C resistant Remarks: Effective: SCHMIDT + BARTL GMBH - AUF HERDENEN 30 - 78052 VS-VILLINGEN - TEL: 07721/99130 - FAX 07721/991320 29.05.2016 www.schmidt-bartl.de e-mail: Mschmidt-bartl.de Side 5 of 128 PTFE TFM chemical: chemical formula: chemical group: Allyl chloride ICH2:CHCH2CII CFHC CAS-No.: 107-05-1 Syn-No.: Conc.: Value: Temp.: UV % RT Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 50 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 75 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 100 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 125 Value: Resistance: C resistant Remarks: Conc.: Value: Temp.: UV % 150 Value: Resistance: C resistant Remarks: chemical: chemical formula: chemical group: Aluminium chloride {A1O13} SALT CAS-No.: 7446-70-0 Syn-No.: Conc.: Value: Temp.: GL % RT Value: Resistance: C resistant Remarks: saturated aqueous solution Conc.: Value: Temp.: GL % 50 Value: Resistance: C resistant Remarks: saturated aqueous solution Conc.: Value: Temp.: GL % 75 Value: Resistance: C resistant Remarks: saturated aqueous solution Conc.: Value: Temp.: GL cyo 100 Value: Resistance: C resistant Remarks: saturated aqueous solution Conc.: Value: Temp.: GL % 125 Value: Resistance: C resistant Remarks: saturated aqueous solution Conc.: Value: Temp.: GL % 150 Value: Resistance: C resistant Remarks: sat

CECHA EUROPEAN CHEMICALS AGENCY ANNEX XV RESTRICTION REPORT PROPOSAL FOR A RESTRICTION SUBSTANCE NAMES: Undecafluorohexanoic acid (PFHxA), its salts and related substances CONTACT DETAILS OF THE DOSSIER SUBMITTER: BAuA Federal Institute for Occupational Safety and Health Division 5 - Federal Office for Chemicals Friedrich-Henkel-Weg 1-25 D-44149 Dortmund, Germany VERSION NUMBER: 1.0 DATE: 20.12.2019 Annankatu 18, P.O.

Chemours Thermal & Specialized Solutions (TSS) contribution to the universal PFAS restriction ECHA Public Consultation 21 September 2023 Attachment 1 1 Table of Contents Abbreviations and Acronyms List........................................................................................................3 Executive Summary............................................................................................................................6 Introduction ....................................................................................................................................23 CHAPTER 1 - There is no risk to be addressed at EU-level: F-gases and trifluoroacetic acid (TFA) are substances that have been proven safe for their intended use ..........................................................29 Section 1.1 - Substance classification, persistence assessment and risk assessment approach ........... 31 Section 1.2 - Human Health and Environmental Hazard Assessment ................................................... 37 Section 1.3 - Environmental fate............................................................................................................ 50 Section 1.4 - Environmental risk assessment......................................................................................... 54 Section 1.5 - Current (and future) regulatory framework to minimize F-gas emissions ....................... 61 Section 1.5.1 - Description of the current (and future) regulatory framework ................................. 62 Section 1.5.2 - Assessment of appropriateness of the existing regulatory framework for F-gases .. 70 Section 1.5.3 - Conclusions................................................................................................................. 81 CHAPTER 2 - Risks can be more appropriately addressed by means of an alternative Restriction Option (additional risk management measures) ...........................................................................................83 Section 2.1 - Description of alternative risk management measures and assessment of appropriateness ...................................................................................................................................... 83 Section 2.2 - Socio Economic Impact of the alternative risk management measures ........................... 89 CHAPTER 3 - The proposed restriction (RO2) is disproportionate ......................................................91 Section 3.1 - Impurity level and effect on value chain........................................................................... 91 Section 3.2 - Hazard assessment of non-fluorinated alternatives ......................................................... 96 Section 3.3 - Use and limitations of alternatives ................................................................................. 105 Section 3.4 - The setting and updating of codes and standards limiting the charge size of flammable refrigerants ........................................................................................................................................... 108 Section 3.5 - Socio Economic Impact of the proposed restriction option on the F-gas sector ............ 114 Section 3.6: Request for derogations based on disproportionate Cost................................................ 118 Conclusions ................................................................................................................................... 121 Reference List ................................................................................................................................ 127 Chapter 1............................................................................................................................................... 127 Chapter 2............................................................................................................................................... 131 Chapter 3............................................................................................................................................... 132 2 Abbreviations and Acronyms List Abbreviation/Acronym (Alphabetical) AC ADI AHRI AR4 AR6 ASHRAE ATEL APM ATSDR BAF BCF BRL BTU CDEA CDR CFC CLP CMR CO2 CRO CSR CTD CXL DMEL DNEL EC EC50 EEA EEAP EFCTC EFSA EFSA ELV EN EPA EPEE EPR EV F-gas GC-MS GLP GWP Full Term Air Conditioning Acceptable Daily Intake Air-Conditioning, Heating And Refrigeration Institute Intergovernamental Panel on Climate Change Fourth Assessment Report Intergovernamental Panel on Climate Change Sixth Assessment Report American Society of Heating, Refrigerating and Air-Conditioning Engineers Acutely Toxic Exposure Limit Advanced Performance Materials Agency for Toxic Substances and Disease Registry Bioaccumulation Factor Bioconcentration Factor KOMO Assessment Guideline (Netherlands) British Thermal Unit Central Database of Emissions to Air Central Database of Reports Chlorofluorocarbon Classification, Labelling and Packaging Regulation Carcinogenic, Mutagenic, Reprotoxic Carbon Dioxide Central Register of Operators Chemical Safety Report Characteristic Travel Distance Codex Maximum Residue Limit Derived Minimal Effect Level Derived No-Effect Level European Commission Half Maximal Effective Concentration European Environmental Agency Environmental Effects Assessment Panel European FluoroCarbon Technical Committee European Food Safety Agency European Food Safety Authority End of Life Vehicles European Norm Environmental Protection Agency European Partnership for Energy and the Environment Extended Producer Responsibility Electric Vehicle Fluorinated Gas Gas Chromatography coupled with Mass Spectroscopy Good Laboratory Practice Global Warming Potential 3 HAZOP HC HCFC HCFO HCI HF HFC HFO HTHP HVACR IEC IPCC IR ISO KMO Kow Lact LC50 LFL LOQ LRTP LVD MAC MDI MRL MS NBOD NMVOC NOAEC NOAEL NOEC NOx ODL ODS OECD OEM OFS OLPCU ORC OSH PBT, vPvB PAN PED PFAS PFCA PFDA Hazard and Operability analysis Hydrocarbon Hydrochlorofluorocarbons Hydrochlorofluoro-olefin Hydrochloric Acid Hydrofluoric Acid Hydrofluorocarbon Hydrofluoroolefin High Temperature Heat Pumps Heating, Ventilation, Air Conditioning and Refrigeration International Electrotechnical Commission Intergovernmental Panel on Climate Change Infrared International Organization for Standardization Klebranchens Miljordning (National Danish register of F-gas companies) Octanol-Water Partition Coefficient Effects on or via lactation Lethal Concentration (50% population) Lower Flammability Limit Level of Quantification Long-Range Transport Potential Low Voltage Directive Mobile Air Conditioning Metered Dose Inhaler Maximum Residue Limit Member State Nitrogenous Biological Oxygen Demand Non-Methane Volatile Organic Compound No-Observed-Adverse-Effect Concentration No-Observed-Adverse-Effect Level No Observed Effect Concentration Nitrogen Oxides Oxygen Depravation Limits Ozone-Depleting Substances Organization for Economic Cooperation and Development Original Equipment Manufacturer Other Fluorinated Substances Ozone Layer and Climate Protection Organic Rankine Cycle Occupational Safety and Health Persistent, Bioaccumulative, Toxic / very Persistent, very Bioaccumulative Peroxyacetyl nitrate Pressure Equipment Directive Per- and polyfluoroalkyl substances Perfluoroalkylcarboxylic acid Perfluoro-decanoic Acid 4 PFECA PFHxA PFHxS PFNA PFOA PFOS PFPrA PFSA pKa PM PNEC POP POCP ppb ppm PPN PTFE RACHP RCR REACH RMM RMOA RO SAP SDS SOx SSA STOT-RE STOT-SE SVHC SWV Tc TFA TLV TSS UBA UNEP UN-GHS UTC VDKF WEEE WEEL WFD WMO Perfluoroalkyl Ether Carboxylic Acids Perfluorohexanoic acid Perfluorohexane sulfonate Perfluoro-nonanoic acid Perfluorooctanoic acid Perfluorooctane sulfonate Perfluoropropionic Acid Perfluorosulfonic acid Negative Log of the acid dissociation constant (Ka) Particulate Matter Predicted No-Effect Concentration Persistent Organic Pollutant Photochemical Ozone Creation Potential Parts Per Billion Parts Per Million Peroxypropionyl nitrate Polytetrafluoroethylene Refrigeration, Air Conditioning and Heat Pump Risk Characterization Ratio Registration, Evaluation, Authorisation and Restriction of Chemicals Risk Management Measure Risk Management Option Analysis Restriction Option Scientific Advisory Panel Safety Data Sheet Sulfur Oxides Sea Spray Aerosols Specific Target Organ Toxicity - Repeated Exposure Specific Target Organ Toxicity - Single Exposure Substance of Very High Concern Stratospheric Water Vapor Critical Temperature Trifluoroacetic Acid Threshold Limit Value Thermal & Specialized Solutions Umweltbundesamt (Germany Environment Agency) United Nations Environmental Programme United Nations Globally Harmonized System Unintended Trace Contaminant Verband Deutscher Klte-Klima-Fachbetriebe Waste Electrical and Electronic Equipment Workplace Environmental Exposure Limit Waste Framework Directive World Meteorological Organization 5 Executive Summary Introduction The Chemours Company welcomes the opportunity to provide feedback to the ECHA public consultation on the restriction of per and polyfluoroalkyl substances (PFASs) submitted by Germany, Denmark, The Netherlands, Sweden and Norway (hereafter referred to as the Dossier Submitters).