LONDON, Ontario — December 22, 2025 — Leads & Copy — Aduro Clean Technologies Inc. has announced the closing of its underwritten U.S. public offering, which generated gross proceeds of approximately US$20 million.
The clean technology company (Nasdaq: ADUR) (CSE: ACT) (FSE: 9D5) said the offering consisted of 1,739,130 common shares, along with accompanying warrants to purchase 869,565 common shares. Proceeds are before deducting underwriting discounts and offering expenses.
The company said the common shares were sold in combination with an accompanying half warrant, with each whole warrant being exercisable into one common share of the company. Each whole warrant has an exercise price of US$16.00 per share, are exercisable immediately and will expire three years from the date of issuance.
D. Boral Capital LLC acted as lead underwriter for the offering, with Roth Capital Partners acting as financial advisor.
Aduro intends to use the net proceeds from the offering for expenditures related to the construction of its Demonstration-Scale Plant and the remainder (if any) for ongoing research and development, general corporate purposes and working capital.
Aduro also granted the underwriters a 45-day over-allotment option to purchase up to an additional 260,869 common shares and/or warrants to purchase an additional 130,434 common shares.
The offering was made 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 (“SEC”) on December 15, 2025 and became effective upon filing, and the Company’s Canadian short form base shelf prospectus dated December 15, 2025.
Aduro offered and sold the securities in the United States only. No securities were offered or sold to Canadian purchasers.
The Base Shelf Prospectus relating to the Offering and describing the terms thereof was filed with the applicable securities commissions in Canada and with the SEC in the United States and is available for free by visiting the Company’s profiles on the SEDAR+ website maintained by the Canadian Securities Administrators at www.sedarplus.ca or the SEC’s website at www.sec.gov, as applicable. A final prospectus supplement with the final terms was filed with the securities regulatory authorities in the Canadian provinces of British Columbia and Ontario and with the SEC.
Copies of the final prospectus may be obtained at the SEC’s website at www.sec.gov or from D. Boral Capital LLC, Attention: 590 Madison Avenue 39th Floor, New York, NY 10022, or by email at info@dboralcapital.com, or by telephone at +1(212)-970-5150.
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.
Contact:
Abe Dyck, Head of Corporate Development and Investor Relations
ir@adurocleantech.com
+1 226 784 8889
Jack Perkins, Senior Vice President, KCSA Strategic Communications, aduro@kcsa.com
D. Boral Capital LLC, dbccapitalmarkets@dboralcapital.com, +1 212 970 5150
Source: Aduro Clean Technologies
