Evoqua Water Technologies Completes Acquisition of Frontier Water Systems

Pittsburgh, PA & San Diego, CA – Evoqua Water Technologies (NYSE: AQUA), an industry leader in mission-critical water treatment solutions, today announced that it has purchased the remaining equity of San Diego-based Frontier Water Systems, LLC. Evoqua initially announced its majority investment position in Frontier Water Systems in October 2019.

Frontier Water Systems is a leading supplier of engineered equipment packages for high-rate treatment of selenium, nitrate, and metals in water and wastewater. Waste streams from processes containing metals and minerals must be treated to remove these contaminants prior to discharge. Frontier delivers a biological process that safely removes these metals in a proprietary, modular bioreactor.

The business adds to Evoqua's portfolio of advanced wastewater treatment technologies. The terms of the deal were not disclosed.

"Evoqua and Frontier have successfully partnered on numerous projects to help solve the water treatment needs of our customers," said Evoqua Chief Executive Officer Ron Keating. "We are pleased to officially welcome Frontier to the Evoqua family, and we look forward to continuing to deliver on our commitment to provide our customers with advanced water treatment solutions."

About Evoqua Water Technologies

Evoqua Water Technologies is a leading provider of mission critical water and wastewater treatment solutions, offering a broad portfolio of products, services and expertise to support industrial, municipal and recreational customers who value water. Evoqua has worked to protect water, the environment and its employees for more than 100 years, earning a reputation for quality, safety and reliability around the world. Headquartered in Pittsburgh, Pennsylvania, the company operates in more than 150 locations across nine countries. Serving more than 38,000 customers and 200,000 installations worldwide, our employees are united by a common purpose: Transforming Water. Enriching Life®.

About DESOTEC

DESOTEC, founded in 1990, is the leading European provider of mobile filtration solutions through a unique and circular service concept, which helps protect the planet by enabling clean water, air, and soil. DESOTEC's customer base is constantly growing thanks to a strong focus on 24/7 service and a commitment to design and deliver the best solution in close dialogue with the customer. Through in-depth expertise of industrial applications and continuous investment in mobile filters, reactivation capacity and well-positioned hubs, DESOTEC ensures that the industry can meet the increasing regulations for a better and cleaner environment. Private equity funds managed by Blackstone acquired DESOTEC in 2021. Further information is available at www.desotec.com.

About Blackstone

Blackstone is the world’s largest alternative asset manager. We seek to create positive economic impact and long-term value for our investors, the companies we invest in, and the communities in which we work. We do this by using extraordinary people and flexible capital to help companies solve problems. Our $951 billion in assets under management include investment vehicles focused on private equity, real estate, public debt and equity, infrastructure, life sciences, growth equity, opportunistic, non-investment grade credit, real assets and secondary funds, all on a global basis. Further information is available at www.blackstone.com.