Exhibit 99.1 DISCLOSURE OF MAJOR HOLDINGS IN LISTED COMPANIES ACT 1996 NOTIFICATION FORM 1996 ACT Part 1 1. Name of the person obliged to notify: New Skies Satellites N.V. 2. Address: Rooseveltplantsoen 4 3. Postal code: 2517 KR The Hague 4. Residence: The Hague Registered office: Amsterdam 5. Country: The Netherlands Country: The Netherlands 6. Statutory name of Act NV: New Skies Satellites N.V. 7. Total Capital Interest: % 6.52% - direct actual: % (A) 6.52% - direct potential: % (C) -- - indirect actual: % (E) -- - indirect potential: % (G) -- Total Voting Rights: % not applicable - direct actual: % (B) - direct potential: % (D) - indirect actual: % (F) - indirect potential: % (H) - 8. Date on which the notification duty arose: 11 March 2002 To the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. 12 March 2003 The Hague New Skies Satellites N.V. -------------------------------- (Mary J. Dent, General Counsel & Management Board Member) Disclosure of Major Holdings in Listed Companies Act 1996 (1996 Act)