ADS Partnership with Geoplast Brings Innovation to Underground Stormwater Management

Advanced Drainage Systems Announces Partnership with Geoplast

Aquabox storage system expands stormwater management product portfolio

HILLIARD, OHIO (August 27, 2024) -Advanced Drainage Systems, Inc. (NYSE: WMS) ("ADS" or the "Company"), a leading provider of innovative water management solutions in the stormwater and onsite septic wastewater industries, and Geoplast, an Italian leader in recycled plastic solutions for sustainable construction products, entered into a strategic partnership to distribute Aquabox, a modular, high-capacity stormwater retention/detention system in the United States.The Aquaboxproduct lineis designed to create flexible underground storage for stormwater retention, infiltration, disposal or harvesting for reuse.

Geoplasthas a proven history of designing and manufacturing innovative products for a variety of applications including in construction, stormwater management, urban greening and landscaping.

"Geoplast shares our commitment to design innovative solutions that safeguard the environment and build resilient communities," said Brian King, Executive Vice President of Marketing, Product Management and Sustainabilityat Advanced Drainage Systems. "This shared commitment is exemplified by Aquabox, which is designed to help protect and manage water­-the world's most precious resource. Geoplast plays a vital role in creating a resilient and sustainable stormwater management infrastructure."

Geoplasts' Aquabox system offers several solutions for stormwater retention and detention. Aquabox' open cellular design includes modules that allow incoming stormwater runoff to freely distribute between modules where it can be stored, collected and/or released with a time delay to reduce potential flooding created by the increase of stormwater intensity in urban areas. Aquabox has high mechanical resistance, so it can be installed in more dense urban applications.

"The company's focus on managing the entire lifecycle of the raindrop made ADS an ideal partner for us as we looked to bring innovative solutions and design to U.S. customers," said Giulio Paolin, Export Manager, North America & Latin America, Geoplast. "Heavy rainfall, combined with the expansion of urban impervious surfaces, demonstrate the need for efficient and sustainable stormwater management solutions like Aquabox."

About Advanced Drainage Systems

Advanced Drainage Systems is a leading manufacturer of innovative stormwater and onsite septic wastewater solutions that manages the world's most precious resource: water. ADS and its subsidiary, Infiltrator Water Technologies, provide superior stormwater drainage and onsite septic wastewater products used in a wide variety of markets and applications including commercial, residential, infrastructure and agriculture, while delivering unparalleled customer service. ADS manages the industry's largest company-owned fleet, an expansive sales team, and a vast manufacturing network of approximately 70 manufacturing plants and 40 distribution centers. The company is one of the largest plastic recycling companies in North America, ensuring over half a billion pounds of plastic is kept out of landfills every year. Founded in 1966, ADS' water management solutions are designed to last for decades. To learn more, visit the company's website at www.adspipe.com.

Investor Contact:

Michael Higgins

VP, Corporate Strategy & Investor Relations

Advanced Drainage Systems, Inc.

Phone: (614)-658-0050

[email protected]

Media Contact:

Brian King

EVP Product Management and Marketing

Advanced Drainage Systems, Inc.

Phone: 614-404-8065

[email protected]