### Cover Letter

To Whom It May Concern:
Please find enclosed a PMN for a new chemical substance. The substance is an inorganic salt of stannous tin and 3,5,5-trimethylhexanoic acid. This is not an organotin. The tin salt is poorly soluble in water. Any dissociation of the salt that does take place in water results in the formation of a hydrated stannous hydroxide and 3,5,5-trimethylhexanoic acid, both of which are also poorly soluble in water. For this reason, obtaining accurate waterbased physical/chemical and toxicological properties on the actual PMN substance is challenging. Accompanying this PMN are test data provide by Evonik Goldschmidt Corporation. Evonik also provided a list of the most likely downstream processing/use sites. We have listed Shannon Gainey and Steven Mozucha with Evonik Goldschmidt Corporation as technical contacts should there be any questions regarding any of this information. Please note that Shannon Gainey spoke with Sharon Austin on 5/23/2013 in advance of the PMN submission. Shannon spoke with Sharon about volumes, container residuals and release estimates. Sharon asked to be assigned to this PMN as she is familiar with this PMN chemical substance.
Although the following information has been provided in the relevant section of the PMN, we want to make clear several items that are important for the assessment of the exposure and release of the PMN substance.
1. The 3-year maximum volume, 160,000 kgs, is the estimated total manufactured volume. We estimate that half of this volume is target for export and therefore, only 80,000 kgs will be targets for use domesticallly in the US. 2. We estimate that the 80,000 kgs (for domestical sale) will be shipped according to the following container types: - 60% metal drums - 18% jerricans -13% IBC totes - 9% Reusable stainless steel totes
These estimates are based on the current market product's shipment ratios and therefore are very reasonable to use for the new PMN substance.

3. The reactor used to manufacture the PMN substance will be dedicated to the PMN substance and need not be washed between campaigns. Therefore, there will be no (zero) release to water through the reactor cleaning.
4. The downstream users (see attachment for the complete list) of the PMN substance use the chemical as a catalyst in the manufacturing of polyurethane based foam. Because this process is highly sensitive to water, the downstream users follow a no water process and therefore do not have NPDES Permits. Several of the users confirmed they have "No Contact Water Certification" because their processes are indoors and further protected from storm water. Since their facilities follow a no water process, there will be no release as a result of downstream

Page 1 SANITIZED SUBMISSIONreactor cleaning. In addition, the tin catalysts are very expensive additives and all users indicated they go to great

lengths to minimize the heel in any container types including drums. If you should have any question, please don't hesitate to contact myself or Shannon Gainey with Evonik.
Respectfully,

Denise L. Hanchulak EH&S and QA Manager Reaxis Inc. 724-796-3116 denise.hanchulak@reaxis.com

Page 2 SANITIZED SUBMISSION44413 STAN130529690913268

R13X01

X X X X

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XXX XXX XXX XXX XXX XXX XXX
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XXX 

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### X 165123 KOSMOS 27 CASIES Report - sanitized.pdf C18H34O4Sn

See Attachment 001 (Kosmos 27-Reaction Scheme2-sanitized.pdf)

Kosmos 27-Reaction Scheme2-sanitized.pdf

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XXX

Inorganic Tin Salt Catalyst 

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X XXX XXX XXX X

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X Catalyst XXX X XXX X XXX X XXX XXX XXX XXX X

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XXX XXX XXX 

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XXX XXX XXX XXX 

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Page 12 SANITIZED SUBMISSIONSee Attachment 002 (Kosmos 27 Production Scheme - sanitized.pdf)

Kosmos 27 Production Scheme - sanitized.pdf

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XXX XXX XXX XXX XXX XXX X X X X

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### X XXX XXX 

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XXX XXX XXX XXX XXX X X

XXX XXX XXX XXX XXX X X

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### X

See Attachment 008 (Kosmos 27 Customer List - sanitized.pdf)

Kosmos 27 Customer List - sanitized.pdf XXX 

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Page 16 SANITIZED SUBMISSIONP10SB1(a)(4)1 Part II, Section B, 1(a)(4). Operation Site Locations

XXX

Page 17 SANITIZED SUBMISSIONA 10 0.5 50 liquid contact, safety glasses, gloves 100 100

1 0 0.2 kg/day Off-site incineration B 30 3 250 Liquid contact, safety glasses, gloves 0.3 0.2

C 20 0.5 1 Liquid contact, safety glasses, gloves 100 100

2 0 0.03 kg/day Off-site incinerations

Page 18 SANITIZED SUBMISSION{XXX}

{XXX} {XXX} {XXX} {XXX} {XXX} {XXX}

Page 19 SANITIZED SUBMISSION001 Kosmos 27-Reaction Scheme-sanitized Kosmos 27-Reaction Scheme2- sanitized.pdf Pt.I, Sec.B, 1e. 1

002 Kosmos 27 Production Scheme - sanitized Kosmos 27 Production Scheme - sanitized.pdf Pt.2, Sec.A, 1d. 1

003 Kosmos 27 CASIES Report - Sanitized KOSMOS 27 CASIES Report - sanitized.pdf Pt.I, Sec.B, 1c. 1

004 Kosmos 27 Chemical Structure - sanitized Kosmos 27 Chemical Structure - sanitized.pdf 1

005 Kosmos 27 MSDS - Evonik Kosmos 27 Evonik MSDS.pdf 7

006 Kosmos 27 MSDS - Reaxis Kosmos 27 MSDS - Reaxis.pdf 3

007 3 Year Volume - sanitized 3 year volume - sanitized.pdf 1

008 Customer List - Site Location Sanitized Kosmos 27 Customer List - sanitized.pdf Pt.2, Sec.B, 1a. 1

009 Kosmos 27-Acute Daphnia Kosmos 27 - Acute Daphnia.pdf 25

010 Kosmos 27-Acute Dermal Tox Kosmos 27 - Acute Dermal Toxicity.pdf 17

011 Kosmos 27-Acute Eye Irritation Kosmos 27 - Acute Eye IrritationCorrosion.pdf 19

012 Kosmos 27-Acute Fish Kosmos 27 - Acute Fish.pdf 21

013 Kosmos 27-Acute Oral Tox Kosmos 27 - Acute Oral Toxicity.pdf 19

014 Kosmos 27-Algae Tox Kosmos 27 - Algae Toxicity.pdf 31

015 Kosmos 27-Ames Test Kosmos 27 - Ames Test.pdf 35

016 Kosmos 27-Density Kosmos 27 - Density.pdf 11

017 Kosmos 27-Flash Point Kosmos 27 - Flash Point.pdf 14

018 Kosmos 27-Hens Egg Test Kosmos 27 - Hen's Egg Test.pdf 19

019 Kosmos 27-In vitro micronucleus Kosmos 27 - In Vitro 41

020 Kosmos 27-In vitro skin irritation Kosmos 27 - In Vitro Skin Irritation.pdf 23

021 Kosmos 27-Phys-chem Properties Kosmos 27 - Phys-Chem 28 

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### (1)

022 Kosmos 27-Ready Biodegradability Kosmos 27 - Ready Biodegradability.pdf 30

023 Kosmos 27-Skin sensitization Kosmos 27 - Skin Sensitization.pdf 22

024 Kosmos 27-Water Solubility Kosmos 27 - Water Solubility.pdf 15

025 Kosmos 27-Analytical Report KOSMOS 27 Analytical Report.pdf 18

026 Kosmos 27-Dissociation Constant Dissociation Constant.pdf 5

027 Kosmos 27-Additional Tech Contacts-sanitized Additional Technical Contacts - sanitized.pdf 1

Page 21 SANITIZED SUBMISSION

### X Estimate

1.205 Measured

Page 22 SANITIZED SUBMISSION

### ATTACHMENT HEADER SHEET

Attachment Number 001
Attachment Name Kosmos 27-Reaction Scheme-sanitized


### Associated PMN Section Number

Pt.I, Sec.B, 1e.

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 002
Attachment Name Kosmos 27 Production Scheme - sanitized


### Associated PMN Section Number

Pt.2, Sec.A, 1d.

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 003
Attachment Name Kosmos 27 CASIES Report - Sanitized


### Associated PMN Section Number

Pt.I, Sec.B, 1c.

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 004
Attachment Name Kosmos 27 Chemical Structure - sanitized


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 005
Attachment Name Kosmos 27 MSDS - Evonik


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 006
Attachment Name Kosmos 27 MSDS - Reaxis


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 007
Attachment Name 3 Year Volume - sanitized


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 008
Attachment Name Customer List - Site Location Sanitized


### Associated PMN Section Number

Pt.2, Sec.B, 1a.

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 009
Attachment Name Kosmos 27-Acute Daphnia


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 010
Attachment Name Kosmos 27-Acute Dermal Tox


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 011
Attachment Name Kosmos 27-Acute Eye Irritation


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 012
Attachment Name Kosmos 27-Acute Fish


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 013
Attachment Name Kosmos 27-Acute Oral Tox


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 014
Attachment Name Kosmos 27-Algae Tox


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 015
Attachment Name Kosmos 27-Ames Test


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 016
Attachment Name Kosmos 27-Density


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 017
Attachment Name Kosmos 27-Flash Point


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 018
Attachment Name Kosmos 27-Hens Egg Test


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 019
Attachment Name Kosmos 27-In vitro micronucleus


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 020
Attachment Name Kosmos 27-In vitro skin irritation


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 021
Attachment Name Kosmos 27-Phys-chem Properties


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 022
Attachment Name Kosmos 27-Ready Biodegradability


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 023
Attachment Name Kosmos 27-Skin sensitization


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 024
Attachment Name Kosmos 27-Water Solubility


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 025
Attachment Name Kosmos 27-Analytical Report


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 026
Attachment Name Kosmos 27-Dissociation Constant


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268

### ATTACHMENT HEADER SHEET

Attachment Number 027
Attachment Name Kosmos 27-Additional Tech Contacts-sanitized


### Associated PMN Section Number

N/A

Does not contain CBI 

### Report Number STAN130529690913268