Advanced Drainage Systems to Announce Fourth Quarter and Fiscal Year 2024 Results on May 16, 2024

Advanced Drainage Systems, Inc. (NYSE: WMS) (“ADS” or the “Company”), a leading manufacturer of stormwater and onsite septic wastewater management products and solutions for commercial, residential, infrastructure and agricultural applications, today announced that it will release its unaudited financial results for the fiscal fourth quarter and year ended March 31, 2024, before the market opens on May 16, 2024.

President and Chief Executive Officer, Scott Barbour, and Chief Financial Officer, Scott Cottrill will host a conference call and webcast on May 16, 2024, at 10:00 a.m. ET to discuss the results.

Webcast: Interested investors and other parties can listen to a webcast of the live conference call by logging in through the Investor Relations section of the Company's website at https://investors.ads-pipe.com/events-and-presentations. An online replay will be available on the same website following the call.

Teleconference: To participate in the live teleconference, participants may register at https://events.q4inc.com/attendee/872412514. After registering, participants will receive a confirmation through email, including dial-in details and unique conference call codes for entry. Registration is open through the live call. To ensure participants are connected for the full call, please register at least 10 minutes before the start of the call.

About the Company

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.