Ms. Mary Anne Whitney reports

WASTE CONNECTIONS ANNOUNCES DATES FOR FIRST QUARTER 2026 EARNINGS RELEASE

Waste Connections Inc. will release financial results for the first quarter of 2026 after the close of the stock market on April 22, 2026. The company will be hosting an investor conference call related to this release on April 23 at 8:30 a.m. Eastern Time.

A live audio webcast of the conference call can be accessed by visiting the company's website and selecting events and presentations from the website menu. Alternatively, conference call participants can preregister. Registered participants will receive dial-in instructions and a personalized code for entry to the conference call. Shortly after the conclusion of the conference call, a webcast replay will be available on the Waste Connections investor website.

Waste Connections may participate in investor conferences and presentations throughout the year. A schedule of investor events can be found by visiting the company's website. During the 24-hour period prior to any scheduled presentations, the company will post any presentation slides on its website under events and presentations.

About Waste Connections Inc.

Waste Connections is an integrated solid waste service company that provides non-hazardous waste collection, and transfer and disposal services, including by rail, along with resource recovery primarily through recycling and renewable fuel generation. The company serves approximately nine million residential, commercial and industrial customers in mostly exclusive and secondary markets across 46 states in the United States and six provinces in Canada. Waste Connections also provides non-hazardous oil field waste treatment, and recovery and disposal services in several basins across the U.S. and Canada, as well as intermodal services for the movement of cargo and solid waste containers in the Pacific Northwest. Waste Connections views its environmental, social and governance efforts as integral to its business, with initiatives consistent with its objective of long-term value creation and focused on reducing emissions, increasing resource recovery of both recyclable commodities and clean energy fuels, and reducing reliance on off-site disposal for landfill leachate, further improving safety and enhancing employee engagement.