Eos Energy Enterprises Inc. Announces Direct Offering to Fund Investment in Frontier Power USA

On June 30, 2026, Eos Energy Enterprises, Inc. (NASDAQ: EOSE) revealed its plans for a proposed registered direct offering of common stock and warrants. This initiative aims to secure funding for the company's strategic investment in Frontier Power USA Parent, LLC. The announcement highlights Eos's commitment to enhancing its operational capabilities and contributing to energy independence in the United States.

Eos Energy's registered direct offering is being conducted under the Securities Act of 1933, indicating a formal approach to securing capital from investors. However, the company cautions that the offering is subject to various market and other conditions, which could affect its completion and the final terms. Investors are advised that there is no assurance regarding when or if the offering will close.

The net proceeds from this offering, in conjunction with any funds raised through a proposed rights offering, are intended to support Eos Energy’s contribution to Frontier Power USA. This investment is viewed as a pivotal step in expanding the company's influence and operational reach within the energy sector.

Eos Energy is proceeding with the offering under an effective shelf registration statement, which includes a base prospectus. The specifics of the offering will be detailed in a separate prospectus supplement, with copies available for interested parties. The company emphasizes the importance of reviewing these documents for comprehensive insights into the offering and its implications for potential investors.

Eos Energy is at the forefront of transforming energy storage solutions in the U.S. with its innovative battery energy storage systems (BESS) featuring the Znyth™ technology. This technology is not only safe and non-flammable but also utilizes non-precious earth components, making it a sustainable alternative to conventional energy storage systems. Eos's products are designed for a variety of applications, including utility-scale projects and microgrid systems, providing essential support for a future with increasing energy demands.

The strategic investment in Frontier Power USA is indicative of Eos Energy's long-term vision for growth and development in the energy sector. By aligning itself with Frontier Power, Eos aims to leverage synergies that could enhance operational efficiency and expand its market presence. This partnership could potentially open new avenues for revenue generation and innovation in energy storage solutions.

While Eos Energy is optimistic about the opportunities this offering presents, it also recognizes the inherent risks involved. Factors such as market volatility, changes in energy policies, and competition within the industry could impact the success of this endeavor. The company has outlined these challenges in its forward-looking statements, urging investors to consider them as part of their decision-making process.

Eos Energy Enterprises Inc.'s announcement of its proposed registered direct offering marks a significant step in its journey towards enhancing energy independence and operational capacity. As the company moves forward, stakeholders will be closely monitoring the developments surrounding the offering and its investment in Frontier Power USA. With innovative technology and a commitment to sustainable energy solutions, Eos is positioning itself as a key player in the evolving landscape of the energy sector.