Rocket Lab SPAC Presentation Deck

TRANSACTION OVERVIEW 35 > Fully diluted pro forma enterprise value of $4.1B, representing 5.4x 2025E revenue of $749M › Existing Rocket Lab shareholders will receive 82% of the pro forma equity > Transaction will result in $745M of cash to the balance sheet to fund growth > Funded by a combination of cash in Vector's trust account and PIPE proceeds Rocket Lab USA Section 4 Sources Existing Rocket Lab Shareholders Vector SPAC Cash in Trust¹ PIPE Equity² Rocket Lab Existing Cash³ Total Sources Uses Existing Rocket Lab Shareholders Cash to Balance Sheet Cash to Existing Shareholders Estimated Fees & Expenses Total Uses $M 3,960 320 467 48 $4,795 $M 3,960 745 40 50 $4,795 Pro Forma Valuation Share Price at Closing PF Shares Outstanding (M) 4,5,6 Equity Value ($M) (-) PF Net Cash ($M)6 Enterprise Value ($M) Pro Forma Ownership5 SPAC Sponsor <2% SPAC Investors 7% PIPE Investors 10% $10.00 482.7 $4,827 (745) $4,082 Existing Rocket Lab Shareholders 82% 1 Assumes no redemptions from existing public shareholders. 2 Assumes 46.7M shares issued at $10.00 per share. 3 $48M of cash and cash equivalents estimate for March 31, 2021 4 Pro forma share count includes 396.0M shares to be issued to existing Rocket Lab shareholders or potentially issuable to holders of vested and unvested stock options, other equity awards and other contingent obligations of Rocket Lab, 46.7M shares to PIPE investors, 32.OM shares to SPAC investors, and 8.0M shares to SPAC sponsor. Assumes new shares issued at $10.00 5 Share count excludes: i) 10.7M public warrants (strike price of $11.50 and redeemable at $18.00 / share); ii) 5.6M Sponsor warrants (with strike price of $11.50); iii) existing shareholder earnout shares equal to 8% of Common Stock held by the existing shareholders at closing (composed of a single tranche with target price of $20.00 per share and vested if stock trades at or above $20.00 for any 20 of 30 days occurring between 90 and 180 days post close). 6 Assumes 4.0M shares otherwise issuable to existing Rocket Lab shareholders are redeemed at $10.00 per share

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