Energy Recovery Technology to Help Deliver Water Security to One Million People Across Saudi Arabia's Mecca, Al-Baha, and Asir Regions

• The flagship project advances Saudi Arabia's Vision 2030 water security goals for some of the Kingdom's most strategically important regions.
• Energy Recovery's installed base and contracted capacity across Saudi Arabia supports over 11 million cubic meters per day of fresh water production.

SAN LEANDRO, Calif.--(BUSINESS WIRE)--Energy Recovery (Nasdaq: ERII), a global leader in energy-efficient technology enabling affordable, reliable water and reduced emissions, today announced a contract to supply its PX® Pressure Exchanger® energy recovery devices to a new flagship seawater reverse osmosis desalination plant under Saudi Arabia's Vision 2030 program. When complete, the plant will deliver affordable, drought-proof water to approximately one million people across the Kingdom's Mecca, Al-Baha, and Asir regions.

Saudi Arabia relies on desalination for more than 70 percent of its potable water supply and has no permanent rivers or lakes, making energy-efficient desalination capacity central to the Kingdom's water security. Mecca, one of the region's most strategically and culturally important cities, drew over 1.5 million pilgrims for Hajj earlier this year, underscoring the importance of a reliable, affordable water supply for the surrounding area.

Energy Recovery's PX devices will operate within the plant’s reverse osmosis process, reducing the energy required to produce fresh water from seawater.

"Saudi Arabia continues to advance an impressive portfolio of water infrastructure to meet rising demand, and this contract reflects the trust the region places in Energy Recovery's technology," said Rodney Clemente, Senior Vice President of Water at Energy Recovery. "Timelines across the region are still shifting as customers adapt to today's environment, but the Kingdom is executing steadily against its Vision 2030 water security goals, and we're proud to be a long-term partner in that effort for a region as important as Mecca."

Energy Recovery's PX devices deliver up to 99 percent efficiency, reducing the energy consumption in seawater desalination by up to 60 percent. With a single moving part and a 30-year design life, the PX is deployed across major desalination plants worldwide.

About Energy Recovery

Energy Recovery (Nasdaq: ERII) designs and manufactures world-class energy-saving technology for critical infrastructure that communities rely on every day, driving a more resilient and sustainable future. Grounded in more than 30 years of leadership in the desalination industry, today we use our proprietary pressure exchanger technology to help customers in multiple industries improve their operations and lower their emissions. Headquartered in the San Francisco Bay Area, we operate manufacturing and R&D facilities throughout California, with sales and on-site technical support available globally.

For more information, please visit www.energyrecovery.com.

Forward-Looking Statements

Certain matters discussed in this press release are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements are based on information currently available to us and on management's beliefs, assumptions, estimates, or projections and are not guarantees of future events or results. Potential risks and uncertainties and any other factors that may have been discussed herein regarding the risks and uncertainties of the Company's business, and the risks discussed under "Risk Factors" in the Company's Form 10-K filed with the U.S. Securities and Exchange Commission ("SEC") for the year ended December 31, 2025, as well as other reports filed by the Company with the SEC from time to time. Because such forward-looking statements involve risks and uncertainties, the Company's actual results may differ materially from the predictions in these forward-looking statements. All forward-looking statements are made as of today, and the Company assumes no obligation to update such statements.