Waste Connections, Inc.

This document contains forward-looking statements within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995 (“PSLRA”), including “forward-looking information” within the meaning of applicable Canadian securities laws. These forward-looking statements are neither historical facts nor assurances of future performance and reflect Waste Connections’ current beliefs and expectations regarding future events, including the completion of the Offering. These forward-looking statements are often identified by the words “may,” “might,” “believes,” “thinks,” “expects,” “estimate,” “continue,” “intends” or other words of similar meaning. All of the forward-looking statements included in this document are made pursuant to the safe harbor provisions of the PSLRA and applicable securities laws in Canada. Forward-looking statements involve risks, assumptions and uncertainties. Important factors that could cause actual results to differ, possibly materially, from those indicated by the forward-looking statements include, but are not limited to, risk factors detailed in the Prospectus Supplement and the accompanying base prospectus, which are both a part of the Registration Statement, the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, and those risk factors set forth from time to time in the Company’s other filings with the SEC and the securities commissions or similar regulatory authorities in Canada. The closing of the Offering is subject to market conditions and a number of other conditions and approvals. The final terms may vary as a result of such market and other conditions. There can be no assurance that the Offering will be completed as described herein or at all. You should not place undue reliance on forward-looking statements, which speak only as of the date of this document. Waste Connections undertakes no obligation to update the forward-looking statements set forth in this document, whether as a result of new information, future events, or otherwise, unless required by applicable securities laws.

The following exhibits are being filed herewith: