Exhibit 4.51 FIFTH AMENDMENT TO CONTRACT ON PROCUREMENT OF TELKOM-2 SATELLITE NO.K.TEL 109/HK.920/UTA-00/2005, DATED 30 AUGUST 2005 Parties: 1. TELKOM; and 2. Orbital Sciences Corporation ("CONTRACTOR"). Preceding Agreements: 1. Main agreement -...Contract on Procurement of Telkom-2 Satellite • June 28th, 2007 • Perusahaan Perseroan Persero Pt Telekomunikasi Indonesia TBK • Telephone communications (no radiotelephone)
