Ms. Mary Anne Whitney reports

WASTE CONNECTIONS ANNUAL SHAREHOLDERS MEETING RESULTS

Waste Connections Inc. has released the results of its annual meeting of shareholders. All eight director nominees in the company's 2026 management information circular and proxy statement were nominated and elected as directors of the company at the meeting. Each director will serve until the close of the next annual meeting of shareholders or until his or her earlier resignation, or his or her successor is duly elected or appointed.

Detailed results of the vote are as follows.

All director nominees were elected in accordance with the majority voting policy included in the company's corporate governance guidelines and board charter, with each receiving a majority of the total votes cast in respect of his or her election.

The shareholders approved on a non-binding, advisory basis the compensation of the company's named executive officers as disclosed in the proxy statement.

The shareholders approved the appointment of Grant Thornton LLP as the company's independent registered public accounting firm for 2026 and authorized the company's board of directors to fix the remuneration of the independent registered public accounting firm.

Final voting results on all matters considered at the meeting will be filed with the U.S. Securities and Exchange Commission and the securities commissions or similar regulatory authorities in Canada.

About Waste Connections Inc.

Waste Connections is an integrated solid waste service company that provides non-hazardous waste collection, 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, 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, reducing reliance on off-site disposal for landfill leachate, and further improving safety and enhancing employee engagement.