Momentus Mission Update

Momentus Inc. (NASDAQ: MNTS) ("Momentus" or the "Company"), a U.S. commercial space company that offers satellite buses and in-space infrastructure services including transportation, hosted payloads, and other in-orbit services, today announced an update on its latest mission that launched on the SpaceX Transporter-9 mission on November 11.

On this mission, Momentus used a third-party deployer system to deliver payloads into orbit. Momentus supported five payloads for four customers.

Since launch, the Company has confirmed the deployment of the Hello Test 1 and 2 satellites for Hello Space. Momentus cannot confirm the deployment of the remaining three satellites for three other customers and based on the results of a detailed investigation undertaken, the Company does not believe those satellites were released from the third-party deployer system.

Momentus appreciates and thanks SpaceX for its work and collaboration in providing information necessary to assist our ongoing investigation into the likely root cause of the issues encountered. Momentus has also been in regular communication with our customers.

Momentus has launched four missions to date, deployed 17 customer satellites, and provided hosted payload services. The Company’s next mission is targeted to fly in Q1 2024. That mission will serve customers that require orbital delivery and hosted payload services. The mission will also feature a Momentus-hosted payload for a rendezvous and proximity operations demonstration.

About Momentus

Momentus is a U.S. commercial space company that offers satellite buses and in-space infrastructure services including transportation, hosted payloads, and other in-orbit services.

Forward-Looking Statements

This press release contains certain statements which may constitute “forward-looking statements” for purposes of the federal securities laws. Forward-looking statements include, but are not limited to, statements regarding Momentus or its management team’s expectations, hopes, beliefs, intentions or strategies regarding the future, projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, and are not guarantees of future performance. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of Momentus’ control. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release, including but not limited to risks and uncertainties included under the heading “Risk Factors” in the Annual Report on Form 10-K filed by the Company on March 8, 2023, as such factors may be updated from time to time in our other filings with the Securities and Exchange Commission (the “SEC”), accessible on the SEC’s website at www.sec.gov and the Investor Relations section of our website at investors.momentus.space. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.

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