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NEWS RELEASE Rocket Lab Announces Third Quarter 2021 Financial Results and Issues Guidance for the Fourth Quarter 2021 11/15/2021 Q3 2021 Financial Results Highlights ROCKET LABI • Revenue above high end of prior guidance range at $ 5.3 million Backlog increased from $ 141 million at June 30 , 2021 to $ 183 million as of September 30 , 2021 , and currently stands at $ 237 million as of November 15 , 2021 ● • Space Systems revenue in the third quarter 2021 grew 360 % over the same quarterly period in 2020 to represent 27 % of total revenue for the nine months ended September 30 , 2021 Successfully completed the merger with Vector Acquisition Corporation resulting in ending cash balance at September 30 , 2021 of $ 792.7 million Q4 2021 Guidance ● ● Revenue to range between $ 23 million to $ 25 million GAAP and non - GAAP gross margins of 13 percent and 27 percent , respectively GAAP and non - GAAP operating expenses between $ 24 million to $ 26 million , and $ 19 million to $ 21 million , respectively • GAAP Net Loss between $ 24 million and $ 26 million , and Adjusted EBITDA loss of $ 9 million to $ 11 million , which reflects adjustments for stock - based compensation , 3rd party fees associated with M & A activity , depreciation and amortization , FX gains and losses , interest expense , taxes and other recurring and non recurring items • All of the above exclude any warrant expense impacts from the public and private warrants assumed from the Vector Acquisition Corporation merger that closed on August 25 , 2021 , and also excludes any impacts ● ● 1