Rocket Lab Announces Conference Call to Review Second Quarter 2021 Financial Results

Rocket Lab USA, Inc. ("Rocket Lab" or "the Company"), a global leader in launch services and space systems, today announced that it will release its financial results for the second quarter 2021 following the close of the U.S. markets on Wednesday, September 8, 2021. Rocket Lab will host a corresponding conference call at 1:30 p.m. Pacific Time (4:30 p.m. Eastern Time).

A live audio-only webcast and replay of the conference call will be available on the Company's Investor Relations website at www.rocketlabusa.com/investors.

Rocket Lab and Vector Acquisition Corporation (NASDAQ:VACQ) ("Vector"), a publicly-traded special purpose acquisition company, announced a proposed business combination in the first quarter of 2021. The transaction is expected to be completed in the third quarter of 2021 following an annual meeting of Vector's shareholders set for August 20, 2021 to approve the proposed business combination between Vector and Rocket Lab. Upon closing, the combined company is expected to remain listed on the Nasdaq with its common stock and warrants trading under the new ticker symbols, "RKLB" and "RKLBW", respectively.

In addition to the Company's Q2 2021 conference call, Rocket Lab will participate in the following conferences in September 2021:

• Bloomberg RADAR 2021
  
  Presentation: Tuesday, September 7, 05:35 p.m. PDT
  
  Speaker: Peter Beck, Founder and Chief Executive 

• Deutsche Bank Virtual Technology Conference
  
  Presentation: Friday, September 10, 11:05 a.m. PDT
  
  Speakers: Peter Beck, Founder and Chief Executive, and Adam Spice, Chief Financial Officer

About Rocket Lab

Rocket Lab is a global leader in space that builds and launches rockets and spacecraft to provide end-to-end mission services for civil, defense, and commercial markets. Headquartered in Long Beach, California, Rocket Lab designs and manufactures the Electron and Neutron launch vehicles and Photon satellite platform. Rocket Lab's Electron launch vehicle is the second most frequently launched U.S. rocket annually and has delivered more than 100 satellites to orbit for private and public sector organizations, enabling operations in national security, scientific research, space debris mitigation, Earth observation, climate monitoring, and communications. Learn more at www.rocketlabusa.com.

Additional Information

This press release relates to a proposed transaction between Rocket Lab and Vector. This press release does not constitute an offer to sell or exchange, or the solicitation of an offer to buy or exchange, any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, sale or exchange would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. Vector and Rocket Lab filed a registration statement on Form S-4 with the U.S. Securities and Exchange Commission (the "SEC"), which includes a document that serves as a joint prospectus and proxy statement, referred to as a proxy statement/prospectus. The proxy statement/prospectus has been sent to all Rocket Lab and Vector shareholders. Rocket Lab and Vector will also file other documents regarding the proposed transaction with the SEC. Before making any voting decision, investors and security holders of Rocket Lab and Vector are urged to read the registration statement, the proxy statement/prospectus and all other relevant documents filed or that will be filed with the SEC in connection with the proposed transaction as they become available because they will contain important information about the proposed transaction.

Investors and security holders will be able to obtain free copies of the registration statement, the proxy statement/prospectus and all other relevant documents filed or that will be filed with the SEC by Rocket Lab and Vector through the website maintained by the SEC at www.sec.gov.

The documents filed by Vector with the SEC also may be obtained free of charge upon written request to Vector Acquisition Corporation, One Market Street, Steuart Tower, 23rd Floor, San Francisco, CA 94105. The documents filed by Rocket Lab with the SEC also may be obtained free of charge upon written request to Rocket Lab USA, Inc., 3881 McGowen Street, Long Beach, CA 90808.

Participants in the Solicitation

Rocket Lab, Vector and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Vector's shareholders in connection with the proposed transaction. A list of the names of such directors, executive officers, other members of management, and employees, and information regarding their interests in the proposed transaction are contained in Vector's filings with the SEC, including Vector's Annual Report on Form 10-K for the year ended December 31, 2020, filed with the SEC on March 30, 2021, as amended by Amendment No. 1 on May 3, 2021, certain of its Current Reports filed on Form 8-K and the definitive proxy statement/prospectus relating to the proposed transaction filed on July 22, 2021, and such information and names of Rocket Lab's directors and executive officers is in the definitive proxy statement/prospectus relating to the proposed transaction filed on July 22, 2021. Additional information regarding the interests of such potential participants in the solicitation process are included in the registration statement (and included in the proxy statement/prospectus) and other relevant documents when they are filed with the SEC.

Forward-Looking Statements

This press release may contain certain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended, including statements regarding Vector's, Rocket Lab's or their respective management teams' expectations, hopes, beliefs, intentions or strategies regarding the future. The words "anticipate", "believe", "continue", "could", "estimate", "expect", "intends", "may", "might", "plan", "possible", "potential", "predict", "project", "should", "would" and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements are based on Rocket Lab's current expectations and beliefs concerning future developments and their potential effects. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release, including but not limited to: (i) the risk that the proposed transaction with Vector may not be completed in a timely manner or at all, (ii) the failure to satisfy the conditions to the consummation of the proposed transaction with Vector, including the adoption of the merger agreement governing the proposed transaction by Vector's shareholders, and (iii) the occurrence of any event, change or other circumstance that could give rise to the termination of the merger agreement. There can be no assurance that the future developments affecting Rocket Lab will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond Rocket Lab's control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. Except as required by law, Rocket Lab is not undertaking any obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

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