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M A 2 6 - 07/6 ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

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28 Day Percutaneous Absorption Study with FC-95 in Albino Rabbits Experiment No.: Conducted At: Dates Conducted: Conducted BY: Reviewed BY: dc: M.

I MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY TEST) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referretdoas PFOS, FC-95,oras a component ofFC-203.

ACUTE TOXICITY TO FISM (MUMMICHOG) TEST S[JRqTAMr'P Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referredtoas PFOS, FC-95, oras a component ofFC-206 or L3243. (1-Octanesulfoniacid)(CAS # 2795-39-3).

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* Sf { | A International Research and Development Corporation 249% 1 sPoNSOR: conpouND: susJECT: 3M Company R-3022 TNoixnteeclyeyDayStuSduyb.acute Rhesus Monkey hn SVidcweinPrI.esiGdoblndcancahnadl, Ph.D Director df Research Collaborators: i D.DiC.reJcetsosrupo,f PRhe.sDe.a,rchAssociate - } R.anGd.

lo Submitted to: BIOSEARCH, INC.

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AR226-00!

ACUTE TOXICITY TO BLUEGILL SUNFISH TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder (3M Lot 583) of uncharacterized purity.

Covance Studies The attachedreportsummarizes the resultsfrom the assessment of mitochondrialbioenergeticosf hepaticmitochondriaisolatedfrom ratstreatedfor3 weeks with one of4 doses(pluscontrolo)f dietaryFC10.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Idenfity:Perfluorooctanesulfonylamido(ethyl)acetmaatye;alsobe referredto as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, or FC-109-X.

CentreAnal!