Aduro Clean Technologies Announces Closing $15.54 Million Underwritten Public Offering

Aduro Clean Technologies announces the closing of its US$15.64 million underwritten public offering, with Canaccord Genuity serving as underwriter. GNW

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LONDON, Ontario, June 11, 2026 (GLOBE NEWSWIRE) — Aduro Clean Technologies Inc. (“Aduro” or the “Company”) (Nasdaq: ADUR) (TSX: ACT) (FSE: 9D5), a clean technology company using the power of chemistry to transform lower value feedstocks, like waste plastics, heavy bitumen, and renewable oils, into resources for the 21^st century, today announced the closing of its underwritten U.S. and Canadian public offering (the “Public Offering”) of 1,028,645 common shares at a price of US$15.20 (C$21.20) per common share for gross proceeds to the Company of US$15,635,404, before deducting underwriting discounts and offering expenses.

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Canaccord Genuity acted as sole bookrunning manager and representative of the several underwriters in connection with the Public Offering.

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Aduro intends to use the net proceeds from the Public Offering for expenditures related to the design, engineering and construction of its first-of-a-kind demonstration-scale industrial plant (the “FOAK Plant”), ongoing research and development costs and the remainder for general corporate purposes and working capital.

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The Public Offering was made concurrently in the United States and in the Canadian provinces of British Columbia and Ontario pursuant to an effective shelf registration statement on Form F-10, as amended (File No. 333-292023), previously filed with the U.S. Securities and Exchange Commission (the “SEC”) on December 15, 2025, and effective upon filing, and the Company’s Canadian short form base shelf prospectus dated December 15, 2025, as supplemented by the prospectus supplement dated June 10, 2026.

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The base shelf prospectus and the prospectus supplement relating to the Public Offering have been filed with the securities regulatory authorities in British Columbia and Ontario and with the SEC in the United States, and are available for free under the Company’s profiles on SEDAR+ maintained by the Canadian Securities Administrators at www.sedarplus.ca and on the SEC’s website for EDGAR at www.sec.gov, as applicable. Copies of the prospectus supplement and accompanying base shelf prospectus may also be obtained from Canaccord Genuity LLC, Attn: Syndication Department, 1 Post Office Square, 30th Floor, Boston, MA 02109, or by email at [email protected].

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This press release shall not constitute an offer to sell, or the solicitation of an offer to buy, any of the Company’s securities, nor shall such securities be offered or sold in the United States absent registration or an applicable exemption from registration, nor shall there be any offer, solicitation, or sale of any of the Company’s securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction.

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All foreign exchange calculations set forth in this press release are based on the exchange rate posted by the Bank of Canada on June 9, 2026 of US$1 = C$1.3947. The Public Offering was conditionally approved by the Toronto Stock Exchange (“TSX”) and remains subject only to customary post-closing conditions of the TSX.

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About Aduro Clean Technologies

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Aduro Clean Technologies is a developer of patented water-based technologies to chemically recycle waste plastics; convert heavy crude and bitumen into lighter, more valuable oil; and transform renewable oils into higher-value fuels or renewable chemicals. The Company’s Hydrochemolytic™ technology relies on water as a critical agent in a chemistry platform that operates at relatively low temperatures and cost, a game-changing approach that converts low-value feedstocks into resources for the 21st century.