On March 17, 2026, Rocket Lab Corporation (the "Company") entered into an equity distribution agreement (the "Equity Distribution Agreement") with BofA Securities, Inc., BTIG, LLC, Cantor Fitzgerald & Co., Citizens JMP Securities, LLC, Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, KeyBanc Capital Markets Inc., Morgan Stanley & Co. LLC, Needham & Company, LLC, Roth Capital Partners, LLC and Stifel Nicolaus & Company, Incorporated, as sales agents (in such capacity, each, a "Sales Agent" and, collectively, the "Sales Agents"), the Forward Sellers (as defined below) and the Forward Purchasers (as defined below). Under the Equity Distribution Agreement, the Company may offer and sell, from time to time, shares of the Company's common stock, par value $0.0001 per share ("Common Stock") (the "Shares"), through or to the Sales Agents, acting as the Company's agents or principal, having an aggregate offering price of up to $1,000,000,000 or by the Forward Sellers, acting as sales agents for the relevant Forward Purchasers.