Oshkosh Partners with Marine Depot Maintenance Command on Advanced Manufacturing Support

Oshkosh Defense, an Oshkosh Corporation (NYSE:OSK) company, announced today a public-private partnership agreement with Marine Depot Maintenance Command (MDMC) in support of advanced manufacturing, materiel support, and the Digital Manufacturing Exchange (DMX), a secure digital backbone designed to accelerate part production and strengthen fleet readiness across the Joint Force.

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ALBANY, Ga. — A Medium Tactical Vehicle Replacement (MTVR) undergoes depot-level rebuild at Production Plant Albany, Marine Depot Maintenance Command. Skilled artisans and maintainers disassemble, inspect, repair and reassemble the vehicle as part of a comprehensive overhaul process designed to restore performance, extend service life and ensure the platform returns to the Fleet Marine Force fully mission capable. Through the Public-Private Partnership with Oshkosh Defense, the process will be further optimized through enhanced technical integration, improved parts availability and shared best practices, increasing efficiency, throughput and long-term sustainment readiness.

Through its participation as an original equipment manufacturer, Oshkosh Defense will provide validated technical data that enables approved parts to be manufactured at the point of need using secure, configuration-controlled processes. The effort supports faster repairs, reduces downtime, and enhances operational availability for critical military fleets.

Modern operations demand sustainment models that can perform in contested and disconnected environments. Traditional supply chains are often extended, complex, and vulnerable. By enabling authorized local production of critical components while safeguarding intellectual property, DMX offers a more resilient approach to maintenance and sustainment.

"As an OEM, we are proud to partner with Marine Depot Maintenance Command on this important initiative," said Pat Williams, Chief Programs Officer, Oshkosh Defense. "Our role is to help fleets repair quickly and return to mission capable status. The ability to rapidly repair and replenish equipment in theater so forces can sustain the fight is a powerful deterrent in today's operational environment."

The Digital Manufacturing Exchange provides a secure framework for transmitting technical data packages and managing intellectual property controls, allowing approved users to produce parts globally while maintaining strict cybersecurity and access standards. For operators in austere or contested environments, this capability reduces reliance on long supply lines and supports faster restoration of combat power.

By combining defense expertise, secure digital infrastructure, and advanced manufacturing, Oshkosh Defense continues to invest in advancing innovative sustainment solutions that align with evolving operational demands. The partnership with MDMC reflects a shared commitment to performance, readiness, and delivering capability where and when it is needed most.

About Oshkosh Defense

Oshkosh Defense is a global leader in the design, production and sustainment of best-in-class military vehicles, technology solutions and mobility systems. Oshkosh develops and applies emerging technologies that advance safety and mission success. Setting the industry standard for sustaining fleet readiness, Oshkosh ensures every solution is supported worldwide throughout its entire life cycle.

Oshkosh Defense LLC is an Oshkosh Corporation company (NYSE:OSK). Learn more about Oshkosh Defense at www.oshkoshdefense.com.

About Oshkosh Corporation

At Oshkosh (NYSE:OSK), we make innovative, purpose-built vehicles and equipment to help everyday heroes advance communities around the world. Headquartered in Wisconsin, Oshkosh Corporation employs over 18,000 team members worldwide, all united behind a common purpose: to make a difference in people's lives. Oshkosh products can be found in more than 150 countries under the brands of JLG®, Pierce®, MAXIMETAL, Oshkosh® S-Series™, McNeilus®, IMT®, Jerr-Dan®, Frontline™ Communications, Oshkosh® Airport Products, Oshkosh AeroTech™, Oshkosh® Defense and Pratt Miller. For more information, visit oshkoshcorp.com.

®, ™ All brand names referred to in this news release are trademarks of Oshkosh Corporation or its subsidiary companies.

Forward Looking Statements

This news release contains statements that the Company believes to be "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including, without limitation, statements regarding the Company's future financial position, business strategy, targets, projected sales, costs, earnings, capital expenditures, debt levels and cash flows, and plans and objectives of management for future operations, are forward-looking statements. When used in this news release, words such as "may," "will," "expect," "intend," "estimate," "anticipate," "believe," "should," "project" or "plan" or the negative thereof or variations thereon or similar terminology are generally intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, assumptions, and other factors, some of which are beyond the Company's control, which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include risks related to the Company's ability to successfully execute on its strategic road map and meet its long-term financial goals. Additional information concerning these and other factors is contained in the Company's filings with the Securities and Exchange Commission. All forward-looking statements speak only as of the date of this news release. The Company assumes no obligation, and disclaims any obligation, to update information contained in this news release. Investors should be aware that the Company may not update such information until the Company's next quarterly earnings conference call, if at all.

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Alexandra Hittle, Director, Global Marketing & Communications

920.410.1929

ahittle@defense.oshkoshcorp.com