AR226-2803 TRADE SECRET Study Title H-24648 and H-24020: Biopersistence Screening 20-Dose Oral Gavage Study in Rats with Recovery Period Laboratory Project ID: DuPont-5207 AUTHOR: Susan A.

Company Name: DuPont de Nemours & Co, Inc.

(dba Exygen Research) (Exygen) from DuPont Corporation.

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DoD MERIT Crystal City, VA 19 July 2016 Stephen Korzeniowski Introduction Emerging Issues Historical Perspective Transition to Short-chains Regulatory Update - United States - Australia Fluorine-free Foams Foam Legacy Consequences Best Practice Guidance - FFFC Current Events & Summary US00002026 37+ Years at DuPont/Chemours Organic Chemist by Training - PhD; M BA-Finance 26 Years in Fluorochemical Technology & Business Roles 15 Years in AFFF Fluorochemcials (2001 - Present) Led DuPont Fluorotelomer technology & plant transition from long to short chains and in US EPA Stewardship Program Founding Member and Past Chairman and Board Member of FFFC Founding Member and Previous Chair of Telomer Research Program (TRP: 2000-2011) and FluoroCouncil Member (2011 - Present) Co-author of 45+ Papers & Articles in Organic Synthesis, Analytical, Toxicology and Fluorotechnology Started BeachEdge Consulting one year ago following Chemours exit - Consult for various companies and teach at local university US00002027 US Department of Defense Federal Aviation Administration European Commission Environment Canada Canadian Department of National Defence Belgian Environment Agency Queensland Department of Environment Western Australia Department of Environment China Ministry of Environmental Protection Stockholm Convention on POPs UK Civil Aviation Authority Global approval bodies: US EPA, METI, UBA KEM SiMidllli Owisil'i Afeeef Environment Canada US00002028 i................. ..... .i' "i.:': 1 fFfioilruifiont #rnor#iuCf*itotfffcuCiicmioc(tfl US00002029 In Business it is the 4 P's of Marketing: - Product, Place, Price, Promotion - Other P's are Positioning, People, Profit In Fluorochemistry (P FA S 's) the P's have evolved as the chemistry has changed from long-chains to short chains - The discussion/debate has shifted away from PBT as the chemistry has changed The 4 P 's of Fluorochemistry: - Potential, Precaution, Presence, Persistence (or vP) A critical P that must always be added to this equation is: Performance US00002030 Need to better understand the degradants or metabolites from the short chain C6 chemistry: PFHxA plus......

(dba Exygen Research) (Exygen) from DuPont Corporation.

(dba Exygen Research) (Exygen) from DuPont Corporation.

CONFIDENTIAL AR226-1307-4 DuPont Epidemiology Surveillance Report MORTALITY AND CANCER INCIDENCE SURVEILLANCE AT WASHINGTON WORKS Requester Gerald A.

(dba Exygen Research) (Exygen) from DuPont Corporation.

DoD MERIT Crystal City, VA 19 July 2016 Stephen Korzeniowski Introduction Emerging Issues Historical Perspective Transition to Short-chains Regulatory Update - United States - Australia Fluorine-free Foams Foam Legacy Consequences Best Practice Guidance - FFFC Current Events & Summary US00002026 37+ Years at DuPont/Chemours Organic Chemist by Training - PhD; M BA-Finance 26 Years in Fluorochemical Technology & Business Roles 15 Years in AFFF Fluorochemcials (2001 - Present) Led DuPont Fluorotelomer technology & plant transition from long to short chains and in US EPA Stewardship Program Founding Member and Past Chairman and Board Member of FFFC Founding Member and Previous Chair of Telomer Research Program (TRP: 2000-2011) and FluoroCouncil Member (2011 - Present) Co-author of 45+ Papers & Articles in Organic Synthesis, Analytical, Toxicology and Fluorotechnology Started BeachEdge Consulting one year ago following Chemours exit - Consult for various companies and teach at local university US00002027 US Department of Defense Federal Aviation Administration European Commission Environment Canada Canadian Department of National Defence Belgian Environment Agency Queensland Department of Environment Western Australia Department of Environment China Ministry of Environmental Protection Stockholm Convention on POPs UK Civil Aviation Authority Global approval bodies: US EPA, METI, UBA KEM SiMidllli Owisil'i Afeeef Environment Canada US00002028 i................. ..... .i' "i.:': 1 fFfioilruifiont #rnor#iuCf*itotfffcuCiicmioc(tfl US00002029 In Business it is the 4 P's of Marketing: - Product, Place, Price, Promotion - Other P's are Positioning, People, Profit In Fluorochemistry (P FA S 's) the P's have evolved as the chemistry has changed from long-chains to short chains - The discussion/debate has shifted away from PBT as the chemistry has changed The 4 P 's of Fluorochemistry: - Potential, Precaution, Presence, Persistence (or vP) A critical P that must always be added to this equation is: Performance US00002030 Need to better understand the degradants or metabolites from the short chain C6 chemistry: PFHxA plus......

. --~ StudyDirector: 4, (il `Carol Finlay, B.A `StaffToxicologist 10 fap otord Applican/t Sponsor: DuPont Representative Date --~ Toei mm Company Sanitized.

W ilson, RN Fayetteville Site Nurse Fayetteville W orks DuPont Company 2_2 8 2 8..

(Exygen; located in State College, PA) that - uatdiolpitzeesd LtihqeuriedguClharromuasteoogfraLpCh/y MST/anMdSefmorMCa-s8s aSnpaelycstirsomien twrayte(rLCi/n MNSo/vMeSm)b.erD2u0P0o1ntand Exygen was contracted to perform the analyses for DuPont

UnpublMwd nMUunmanto, Ruowal EASOO DuPont, ^TAC 2003.

Box 50 Newark, Delaware 19714-0050 ~~ LABORATORY PROJECT ID: DuPont-12966 p-- `WORK Raauesy Novos JA ~ - TTT `Company Sanitized.