p110330.eng INITIAL REVIEW ENGINEERING REPORT PMN: 11-0330 Focus Ready Draft 5/19/2011 ENGINEER: Avcin \ JD \ EV PV (kg/yr):

SUBMITTER: KiOR, Inc. USE: Blendstock for gasoline, diesel and other transportation fuels.
P2 REC: CRSS: forward. P2 Claims: The substance can be substituted for petroleum-based fuels, is expected to reduce greenhouse gas emissions, and utilizes excess biomass feedstocks.

OTHER USES: MSDS: Yes Label: No Gen Eqpt: Eye Protection: Use safety glasses with side shields, chemical goggles and/or a full face respirator where splashing or misting is possible. Avoid the use of a face shield as primary eye protection. Maintain an eye wash facility in near proximity to the work area. Skin Protection: Wear impervious clothing, including boots, gloves, lab coat or coveralls as appropriate for the potential exposure. Respirator: If engineering controls are not available or are not effective, use a NIOSH approved respirator to prevent vapor exposure. In emergencies or in other cases where exposure is unknown, use a self]contained breathing apparatus (SCBA) or a supplied air respirator. Respirators should be used in accordance with OSHA requirements (29 CFR 1910.134). Health Effects: Eye Contact: May cause mild to moderate eye irritation. In severe cases, permanent| eye damage may result. Skin Contact: May cause skin irritation, defatting and dermatitis. If skin is damaged absorption may be increased. Inhalation: The breathing of vapors, mists and sprays of this material well above occupational exposure levels may irritate the respiratory tract. Upon high acute exposures, may also cause CNS depression. In severe cases, overexposure may cause convulsions, coma, and death. Ingestion: May irritate the digestive tract. Ingestion of large amounts may have| systematic effects. It is also an aspiration hazard, as the material may enter the lungs upon swallowing or vomiting and result in lung inflammation and the resulting damage. Ingestion of smaller TLV/PEL: none established Page 1p110330.eng

Consumer Use: No SAT (concerns) (04/26/2011): Related Cases and Related Cases and Misc SAT Info:
Migration to groundwater: Moderate PBT rating: P1B1T1 . Health: 1-2 Dermal, Drinking Water, Inhalation Eco: 2 Water (All releases to water with a CC = 180 ppb)
OCCUPATIONAL EXPOSURE RATING: 2-3C
NOTES & KEY ASSUMPTIONS: Generated by the 06/07/2005 version of ChemSTEER.

Page 2p110330.eng

Page 3p110330.eng

Page 4p110330.eng

EXPOSURE-BASED REVIEW: Yes (2 criteria met) 1) # of workers exposed: 0 >1000? No 2) >100 workers with >10 mg/day inhalation exposure: Yes 3) (a) >100 workers w/1-10 mg/day inh. exp. & >100 days/yr: Yes (b) Routine Dermal Cont: >250 workers & >100 days/yr: No
INITIAL REVIEW ENGINEERING REPORT PMN: 11-0330 Manufacturing: Number of Sites/ Location:

Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Page 5p110330.eng

Page 6p110330.eng

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 6

Inhalation: Exposure to Vapor (Class II) Typical: 5.6E-2 mg/day over 365 days/yr Worst Case: 6.9E+0 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 6

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Exposure to Vapor (Class II) Typical: 3.7E+3 mg/day over 365 days/yr Worst Case: 1.1E+5 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 6

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Page 7p110330.eng Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 6

INITIAL REVIEW ENGINEERING REPORT PMN: 11-0330 Manufacturing: Number of Sites/ Location:

Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 3

Inhalation: Exposure to Vapor (Class II) Page 8p110330.eng Typical: 6.0E+1 mg/day over 365 days/yr Worst Case: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 3

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 3

INITIAL REVIEW ENGINEERING REPORT PMN: 11-0330 Processing: Number of Sites/ Location:

Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Page 9p110330.eng

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 12

Inhalation: Exposure to Vapor (Class II) Typical: 1.9E+3 mg/day over 365 days/yr Worst Case: 5.6E+4 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 12

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Exposure to Vapor (Class II) Typical: 1.9E+4 mg/day over 365 days/yr Worst Case: 5.6E+5 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure: 12

Page 10p110330.eng INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 100.00% concentration High End: 1.8E+3 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 12

INITIAL REVIEW ENGINEERING REPORT PMN: 11-0330

Use: Number of Sites/ Location:

Process Description:

ENVIRONMENTAL RELEASES ESTIMATE SUMMARY IRER Note: The daily releases listed for any source below may coincide with daily releases from the other sources to the same medium.

Page 11p110330.eng

OCCUPATIONAL EXPOSURES ESTIMATE SUMMARY Tot. # of workers exposed via assessed routes: 159

Inhalation: Exposure to Vapor (Class II) Typical: 1.4E+3 mg/day over 365 days/yr Worst Case: 4.2E+4 mg/day over 365 days/yr Number of workers (all sites) with inhalation exposure:

INHALATION MONITORING DATA REVIEW 1) Uncertainty (estimate based on model, regulatory limit or data not specific to industry): Yes 2)a) Exposure level > 1 mg/day? Yes OR b) Hazard Rating for health of 2 or greater? 1-2 No Inhalation Monitoring Data Desired? Yes (both criteria met) Dermal: Exposure to Liquid at 10.00% concentration High End: 1.8E+2 mg/day over 365 days/yr Number of workers (all sites) with dermal exposure: 159

Page 12