3M GeneralOMces 31MCenter St.PauiM,N 55144-1000 6127331110 April28,2000 Mr.OscarHernandez US EPA/OPPT/CCD (7405) 401 M StreetS,W Room E615B Washington,DC 20460 Dear Oscar: As partoftheongoingvoluntarysubmissionof dataand informationon perfluorooctanseulfonicacid(PFOS) toEPA by 3M, enclosedisinformationon use and exposurerelatintgo,PFOS (Attachment1).Thisinformationispresented followingtheforrnaotfa "Use and ExposureInformatioPnrofile"(UEIP)as recommended to ')M by EPA OPPT management.

3M General Offices 3M Center St.Paul,MN 55144-1000 612733 1110 May 18,2000 VIA EXPRESS MAIL Dr.

~ 3N1 Corporate ToxicologN and 3M Center.

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The Second Annual Meeting of the Shanghai Health Study Background The purpose of the Shanghai Health Study is to gain a more refined understanding of the relationship between benzene exposure and potentially associated human health effects.

From: Sent: To: Cc: Subject: Attach: De Jong, Geert G SI-HEI2 Friday, January 26,2001 12:26 PM (GMT) Tsai, Shan SP SHLOIL-SPS <st196949@shell.com> Fraser, Alistair AE SHLOIL <af777405@shell.com> FW: Materials for Jan. 26 Shanghai Benzene Epi Study meeting epi note_GDldoc Shan Understand from Tony that you are fully in the picture and share some of our concerns.

Ethics Considerations and Status of Resolution Issue Scientific Validity of the Study Benefits to Participants Appropriateness of Compensation to Participants Infonned Consent Confidentiality Cultural Sensitivity Control of Results Benefits to the General Worker Population Expos~d to Benzene Other Benefits March 2, 2001 Resolution Multiple review of protocols by an independent scientific review committee Approval of protocols by US and Chinese Universities' Institutional Review Boards Protocol changes to be approved by scientific review committee US Standards of diagnosis of hematopoietic disease Increased follow-up after treatment Technology transfer for workplace monitoring Early diagnosis of benzene toxicity and removal from workplace Monetary compensation based on standard practice in China Compensation to be based upon level of participation and, to avoid excessive inducement, standard practice in China for similar procedures.

ELSEVIER Available online at www.sciencedirect.com SCIENCE"@DIRECT Regulatory Toxicology and Pharmacology 38 (2003) 112-123 Regulatory Toxicology and Pharmacology www.elsevier.comllocate/yrtph New trends in the development of occupational exposure limits for airborne chemicals in China You-xin Liang,a.* Zhi Su,b Wei-ai Wu,c Bo-qin Lu,c Wei~zu Fu,d Lei Yang,e and Jin-yu Gub Fudan University School oj Public Hea/lh, 138 Yixueyuan Road, Shanghai 200032, China b Ministry oj Health, P.R.

Benzene Task Force (BzTF) Minutes from Conference Call on Tuesday, July 21,2009 at 2PM (EDT) Participants Michael Bird (Chair) Stuart Cagen Tracy Hammon Petra Holden Christine Palermo Eric Stine Mark Swanson Russell White Kimberly Wise ExxonMobil Biomedical Science, Inc.

To: From: Cc: Bcc: Received Date: Subject: Cagen, Stuart SZ SCC <SC724012@MSXSCC.SHELL.COM>; Tsai, Shan SP SHLOIL-SPS <ST196949@MSXSOC.SHELL.COM> Clegg, Patsy PM SCC <lO=SHELLlOU=MSXSCC/CN=RECIPIENTS/CN=PH197432> 2000-08-02 20:58:59 GMT FW: Benzene Epi Mtg More info on Aug 31 Benzene epi meeting.

From: Sent: To: Subject: guilanli <guilanJi@sohu.com> Wednesday, August 15,2001 10:16 AM (GMT) Tsai, Shan SP SHLOIL-SPS <sptsai@Shel1.Com> Re:RE:MyCV Tsai, Shan SP SHLOIL-SPS, 1fIJ.

From: Sent: To: Cc: Subject: Attach: George Woodall <Woodallg@api.org> Monday, September 24,2001 4:08 PM (GMT) Richard Irons (E-mail) <richard.irons@uchsc.edu>; Otto Wong (E-mail) <OttoWong@ao1.com>; Robert SchnatterPh.