MEDIA RELEASE Exhibit 99.1 Rocket Lab Announces Third Quarter 2025 Financial Results, Posts Record Quarterly Revenue of $155m, Representing 48% Year-on-Year Growth at Record Gross Margins Long Beach, California. November 10, 2025 – Rocket Lab Corporation (Nasdaq: RKLB) ("Rocket Lab", "the Company", "we," "us," or "our"), a global leader in launch services and space systems, today shared the financial results for fiscal third quarter ended September 30, 2025. Rocket Lab founder and CEO, Sir Peter Beck, said: ...