Common use of Letter Agreements Clause in Contracts

Letter Agreements. 4.1 Letter Agreement HAZ-PA-03791-LA-1208078R9, entitled “[*]” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208078R10, entitled “[*],” ([*]) which is provided as Enclosure 5 to this Supplemental Agreement No. 27, and incorporated into the Purchase Agreement. 4.2 Letter Agreement HAZ-PA-03791-LA-1208090R9, entitled “[*]” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208090R10, entitled “[*]” which is provided as Enclosure 6 to this Supplemental Agreement No. 27, and incorporated into the Purchase Agreement. 4.3 New Letter Agreement HAZ-PA-03791-LA-2100098, entitled “[*]” which is provided as Enclosure 7 to this Supplemental Agreement No. 27, is incorporated into the Purchase Agreement.

Letter Agreements. 4.1 Letter Agreement No. HAZ-PA-03791-LA-1208078R9, LA-1208078R12 entitled “[*]” is deleted in its entirety, entirety and replaced with a revised Letter Agreement No. HAZ-PA-03791-LA-1208078R10, LA-1208078R13 entitled “[*],” ([*]) ), which is provided as Enclosure 4 to this Supplemental Agreement No. 34 and incorporated into the Purchase Agreement by this reference. 4.2 Letter Agreement No. HAZ-PA-03791-LA-1208090R15 entitled “[*]” is deleted in its entirety and replaced with a revised Letter Agreement No. HAZ-PA-03791-LA-1208090R16 entitled “[*]” which is provided as Enclosure 5 to this Supplemental Agreement No. 27, 34 and incorporated into the Purchase AgreementAgreement by this reference. 4.2 4.3 A new Letter Agreement No. HAZ-PA-03791-LA-1208090R9, LA-2302334 entitled “[*]” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208090R10, entitled “[*]” which is provided as Enclosure 6 to this Supplemental Agreement No. 27, 34 and incorporated into the Purchase AgreementAgreement by this reference. 4.3 New Letter Agreement HAZ-PA-03791-LA-2100098, entitled “[*]” which is provided as Enclosure 7 to this Supplemental Agreement No. 27, is incorporated into the Purchase Agreement.

Letter Agreements. 4.1 3.1 Letter Agreement HAZ-PA-03791-LA-1208078R9LA-1208090R13, entitled “[*],” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208078R10LA-1208090R14, entitled “[*],” ([*]) which is provided as Enclosure 5 10 to this Supplemental Agreement No. 2732, and incorporated into the Purchase Agreement. 4.2 3.2 Letter Agreement HAZ-PA-03791-LA-1208090R9LA-1208079R2, entitled “[*],” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208090R10LA-1208079R3, entitled “[*],” which is provided as Enclosure 6 11 to this Supplemental Agreement No. 2732, and incorporated into the Purchase Agreement. 4.3 New Letter Agreement HAZ-PA-03791-LA-2100098, entitled “[*]” which is provided as Enclosure 7 to this Supplemental Agreement No. 27, is incorporated into the Purchase Agreement.

Letter Agreements. 4.1 Letter Agreement HAZ-PA-03791-LA-1208078R9LA-1208078R10, entitled “[*]” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208078R10LA-1208078R11, entitled “[*],” ([*]) which is provided as Enclosure 5 7 to this Supplemental Agreement No. 2728, and incorporated into the Purchase Agreement. 4.2 Letter Agreement HAZ-PA-03791-LA-1208090R9LA-1208090R10, entitled “[*]” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208090R10LA-1208090R11, entitled “[*]” which is provided as Enclosure 6 8 to this Supplemental Agreement No. 2728, and incorporated into the Purchase Agreement. 4.3 New Letter Agreement HAZ-PA-03791-LA-2100098LA-2101360, entitled “[*]” which is provided as Enclosure 7 9 to this Supplemental Agreement No. 2728, is incorporated into the Purchase Agreement.

Letter Agreements. 4.1 Letter Agreement HAZ-PA-03791-LA-1208078R9LA-1208078R11, entitled “[*],” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208078R10LA-1208078R12, entitled “[*],” ([*]) which is provided as Enclosure 5 10 to this Supplemental Agreement No. 2731, and incorporated into the Purchase Agreement. 4.2 Letter Agreement HAZ-PA-03791-LA-1208090R9LA-1208090R12, entitled “[*],” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-1208090R10LA-1208090R13, entitled “[*],” which is provided as Enclosure 6 11 to this Supplemental Agreement No. 2731, and incorporated into the Purchase Agreement. 4.3 New Letter Agreement HAZ-PA-03791-LA-2100098LA-18005016, entitled “[*],” is deleted in its entirety, and replaced with a revised Letter Agreement HAZ-PA-03791-LA-18005016R1, entitled “[*],” which is provided as Enclosure 7 12 to this Supplemental Agreement No. 2731, is and incorporated into the Purchase Agreement.