Mr. Avshalom Vicus, a shareholder, reports

AVSHALOM OFER VICUS FILES EARLY WARNING REPORT REGARDING SHARE PLEDGE

Avshalom Ofer Vicus has provided an update on the reporting person's securityholdings with respect to Aduro Clean Technologies Inc. The reporting person has pledged 500,000 common shares of the company as collateral pursuant to a securities account pledge and control agreement.

The reporting person owns 24.9 per cent of the shares, calculated based on 35,871,442 shares, consisting of 35,733,749 shares outstanding as of Sept. 28, 2026, and 137,693 shares that may be acquired upon exercise of stock options. The pledge arrangement does not constitute a sale, transfer or disposition of the pledged shares, and does not result in any change in the reporting person's beneficial ownership of, or voting or dispositive power over, the pledged Shares.

The reporting person has filed an early warning report pursuant to National Instrument 62-103F1, The Early Warning System and Related Take-Over Bid and Insider Reporting Issues, describing the above securityholdings with the applicable securities regulatory authorities. A copy of the early warning report is available on SEDAR+ under the profile of the company.