. . . Exhibit 4.54 THIRD AMENDMENT TO SUPPLY CONTRACT FOR PROCUREMENT AND INSTALLATION OF RING JASUKA BACKBONE NO.K.TEL 32/HK.920/UTA-00/2007, DATED 7 FEBRUARY 2007 Parties: 1. TELKOM; and 2. NEC-Siemens Consortium ("NEC"). Preceding Contracts: 1. Main Contract - No.K.TEL.93/HK.910/UTA-00/2005 dated 10 June 2005; 2. First Amendment - No.K.TEL.10/HK.920/UTA-00/2006 dated 6 February 2006; 3. Second Amendment - No.K.TEL.61/HK.920/UTA-00/2006 dated 16 March 2006; 4. Amendment No. 3 - No.Tel.248/HK.930/UTA-00/2004 dated 29 October 2004. Amended Provisions: 1. Article 2 of the Second Amendment, as follows: "The entire Work under the Contract shall be completed as follows: a. Each Sub-system of RING-I shall be completed as follows: - Within 256 (two hundred fifty-six) days from EDC for Sub-system #1 - #2 or not later than February 21st, 2006; - Within 273 (two hundred seventy-three) days from EDC for Sub-system #3 or not later than March 10th, 2006. b. Each Sub-system of RING-II shall be completed as follows: - Within 284 (two hundred eighty-four) days from EDC for Sub-system #1 or not later than March 21st, 2006; - Within 416 (four hundred sixteen) days from EDC for Sub-system #2 or not later than July 31st, 2006; - Within 345 (three hundred forty-five) days from EDC for Sub-system #3 - #4 or not later than May 21st, 2006. 2. Article 4.1 of the Second Amendment regarding Contract Price.