Common use of Performance Pricing Applies Clause in Contracts

Performance Pricing Applies. Adjusted Quick Ratio at least 1.50:1.00 Prime + 0.75% (Eligible Accounts) or Prime + 1.25% (Eligible Foreign Accounts); Yes No Adjusted Quick Ratio less than 1.50:1.00 Prime + 1.50% (Eligible Accounts); Prime + 2.00% (Eligible Foreign Accounts) Yes No The following financial covenant analyses and information set forth in Schedule 1 attached hereto are true and accurate as of the date of this Certificate. The following are the exceptions with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ASPEN AEROGELS, INC. By: Name: Title: BANK USE ONLY Received by: _____________________ authorized signer Date: _________________________ Verified: ________________________ authorized signer Date: _________________________ Compliance Status:Yes No

Performance Pricing Applies. Adjusted Quick Ratio at least 1.50:1.00 Prime + 0.75% (Eligible Accounts) or Prime + 1.25% (Eligible Foreign Accounts); LIBOR + 3.75% (Eligible Accounts) or LIBOR +4.25% (Eligible Foreign Accounts) Yes No Adjusted Quick Ratio less than 1.50:1.00 Prime + 1.50% (Eligible Accounts); Prime + 2.00% (Eligible Foreign Accounts) Yes No The following financial covenant analyses and information set forth in Schedule 1 attached hereto are true and accurate as of the date of this Certificate. The following are the exceptions with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ASPEN AEROGELS, INC. By: Name: Title: BANK USE ONLY Received by: _____________________ authorized signer Date: _________________________ Verified: ________________________ authorized signer Date: _________________________ Compliance Status:Yes No

Performance Pricing Applies. Adjusted Quick Ratio at least 1.50:1.00 Prime + 0.75% (Eligible Accounts) or Prime + 1.25+1.25% (Eligible Foreign AccountsAccounts and Eligible Inventory); LIBOR + 3.75% (Eligible Accounts) or LIBOR +4.25% (Eligible Foreign Accounts and Eligible Inventory) Yes No Adjusted Quick Ratio less than 1.50:1.00 Prime + 1.50% (Eligible Accounts); Prime + 2.00% (Eligible Foreign AccountsAccounts and Eligible Inventory) Yes No The following financial covenant analyses and information set forth in Schedule 1 attached hereto are true and accurate as of the date of this Certificate. The following are the exceptions with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ASPEN AEROGELS, INC. By: Name: Title: BANK USE ONLY Received by: _____________________ authorized signer Date: _________________________ Verified: ________________________ authorized signer Date: _________________________ Compliance Status:Yes No

Performance Pricing Applies. Adjusted Quick Ratio at least 1.50:1.00 Prime + 0.75% (Eligible Accounts) or Prime + 1.25% (Eligible Foreign AccountsAccounts and Eligible Inventory); LIBOR + 3.75% (Eligible Accounts) or LIBOR +4.25% (Eligible Foreign Accounts and Eligible Inventory) Yes No Adjusted Quick Ratio less than 1.50:1.00 Prime + 1.501.25% (Eligible Accounts); Prime + 2.001.75% (Eligible Foreign AccountsAccounts and Eligible Inventory) Yes No The following financial covenant analyses and information set forth in Schedule 1 attached hereto are true and accurate as of the date of this Certificate. The following are the exceptions with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ASPEN AEROGELS, INC. By: Name: Title: BANK USE ONLY Received by: _____________________ authorized signer Date: _________________________ Verified: ________________________ authorized signer Date: _________________________ Compliance Status:Yes No

Performance Pricing Applies. Adjusted Quick Ratio at least 1.50:1.00 Prime + 0.75% (Eligible Accounts) or Prime + 1.25% (Eligible Foreign AccountsAccounts and Eligible Inventory); LIBOR + 3.75% (Eligible Accounts) or LIBOR +4.25% (Eligible Foreign Accounts and Eligible Inventory) Yes No Adjusted Quick Ratio less than 1.50:1.00 Prime + 1.50% (Eligible Accounts); Prime + 2.00% (Eligible Foreign AccountsAccounts and Eligible Inventory) Yes No The following financial covenant analyses and information set forth in Schedule 1 attached hereto are true and accurate as of the date of this Certificate. The following are the exceptions with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ASPEN AEROGELS, INC. By: Name: Title: BANK USE ONLY Received by: _____________________ authorized signer Date: _________________________ Verified: ________________________ authorized signer Date: _________________________ Compliance Status:Yes No