ULTRALIFE CORP

In this Proxy Statement, unless otherwise instructed the terms “Ultralife,” “Company,” “we,” “our,” and “us” refer to Ultralife Corporation (“Ultralife”) and its wholly owned subsidiaries: ABLE New Energy Co., Limited and its wholly owned subsidiary ABLE New Energy Co. Ltd (collectively “ABLE”); Ultralife UK LTD and its wholly owned subsidiary Accutronics Ltd (collectively “Accutronics”); Ultralife Batteries (UK) Ltd.; Southwest Electronic Energy Corporation and its wholly owned subsidiary, CLB, Inc. (collectively “SWE”); Ultralife Excell Holding Corp (“UEHC” and its wholly owned subsidiary Excell Battery Corporation USA (collectively Excell Battery USA”), Ultralife Canada Holding Corp (wholly owned by UEHC, “UCHC”) and its wholly owned subsidiary Excell Battery Canada ULC (“Excell Battery Canada”); Electrochem Solutions, Inc. (“Electrochem”) and our majority-owned joint venture Ultralife Batteries India Private Limited (“Ultralife India”). This Proxy Statement includes website addresses and references to additional materials found on those websites. These websites and materials are not incorporated into this Proxy Statement by reference.

This document includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding our environmental and social goals, commitments and strategies. These statements involve risks and uncertainties and are based on the beliefs of management as well as assumptions made by and information currently available to management. Actual results could differ materially from any future results expressed or implied by the forward-looking statements for a variety of reasons, including due to the risks and uncertainties that are discussed in our most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings. We assume no obligations to update any forward-looking statements or information, which speak as of their respective dates.

Although we base these forward-looking statements on assumptions that we believe are reasonable when made, we caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition and liquidity and developments in the industries in which we operate may differ materially from those made in or suggested by the forward-looking statements contained herein.

These materials were first sent or made available to stockholders on June 2, 2026.