Mr. Jean-Felix Lepage reports

SIRIOS RESOURCES INC. CLOSES FULLY-SUBSCRIBED $25 MILLION BROKERED LIFE OFFERING OF FLOW-THROUGH UNITS AND UNITS

Sirios Resources Inc. has closed its previously announced best efforts private placement offering under the LIFE (listed issuer financing exemption) (as defined herein) of: (i) 40,740,740 flow-through (FT) units of the company at a price of 27 cents per FT unit; and (ii) 70 million units of the company at a price of 20 cents per hard-dollar (HD) unit, including the full exercise of the option granted to the agents (as defined herein), for aggregate gross proceeds to the company of approximately $25-million.

Each FT unit consists of one common share of the company and one-half of one common share purchase warrant of the company. The FT shares and FT warrants comprising the FT units each qualify as flow-through shares within the meaning of Subsection 66(15) of the Income Tax Act (Canada) (ITA).

Each HD unit consists of one common share of the company and one-half of one common share purchase warrant of the company.

Each warrant entitles the holder thereof to purchase one non-flow-through common share of the company at a price of 30 cents per warrant share, subject to customary anti-dilution adjustments, at any time on or before March 18, 2027, subject to acceleration in certain circumstances.

The offering was completed pursuant to the terms of an agency agreement dated March 18, 2026, among the company, National Bank Capital Markets and MDCP Securities Ltd., as co-bookrunners and co-lead agents. As consideration for their services in connection with the offering, the company paid the agents a cash commission equal to $1,212,499.99.

The units were issued in reliance on the listed issuer financing exemption available under Part 5A of National Instrument 45-106, Prospectus Exemptions, as amended by Coordinated Blanket Order 45-935, Exemptions from Certain Conditions of the Listed Issuer Financing Exemption, in each of the provinces and territories of Canada. Pursuant to the LIFE, all units sold to purchasers resident in Canada in connection with the offering are not subject to resale restrictions in Canada in accordance with applicable Canadian securities legislation. The units were also offered in jurisdictions outside of Canada on a private placement or equivalent basis, in each case in accordance with all applicable laws, provided that no prospectus, registration statement or other similar document is required to be filed in such jurisdiction. The offering remains subject to final acceptance by the TSX Venture Exchange.

The company will use an amount equal to the gross proceeds received by the company from the sale of the FT units, pursuant to the ITA, to incur (or be deemed to incur) eligible Canadian exploration expenses that qualify as flow-through mining expenditures (as both terms are defined in the ITA and proposed amendments thereto) related to the company's projects in Canada as more fully described in the company's amended and restated offering document dated March 16, 2026, on or before Dec. 31, 2027, and will renounce all the qualifying expenditures in favour of the initial subscribers of the FT units effective on or prior to Dec. 31, 2026. In the event the company is unable to renounce the qualifying expenditures effective on or prior to Dec. 31, 2026 for each FT unit purchased in an aggregate amount not less than the gross proceeds raised from the issue of the FT units or the qualifying expenditures are otherwise reduced by the Canada Revenue Agency, the company will (to the extent permitted by the ITA) indemnify each initial subscriber of the FT units for any additional taxes payable by such subscriber as a result of the company's failure to renounce the qualifying expenditures or as a result of the reduction as agreed.

The net proceeds from the sale of HD units will be used to incur additional Canadian exploration expenses, and for general corporate and administrative expenses, and working capital purposes.

Multilateral Instrument 61-101 disclosure

Certain insiders of the company have subscribed for an aggregate of 1.1 million HD units, for aggregate gross proceeds of $220,000. Each subscription by an insider of the company is considered to be a related party transaction of the company for purposes of MI 61-101, Protection of Minority Security Holders in Special Transactions, and Policy 5.9, Protection of Minority Securityholders in Special Transactions, of the corporate finance manual of the exchange. In completing the offering, the company is relying upon exemptions from the formal valuation and minority shareholder approval requirements available under MI 61-101. The company is exempt from the formal valuation requirement in Section 5.4 of MI 61-101 in reliance on sections 5.5(a) and (b) of MI 61-101 as the fair market value of the transaction, insofar as it involves interested parties, is not more than 25 per cent of the company's market capitalization, and no securities of the company are listed or quoted for trading on prescribed stock exchanges or stock markets. Additionally, the company is exempt from the minority shareholder approval requirement in Section 5.6 of MI 61-101, in reliance on, inter alia, Section 5.7(1)(a), as the fair market value of the transaction, insofar as it involves interested parties, is not more than 25 per cent of the company's market capitalization. Securities issued to such insiders are subject to the exchange hold period (as such term is defined under Policy 1.1 of the exchange).

About Sirios Resources Inc.

Sirios Resources is a mining exploration company based in Quebec, focused on developing its portfolio of high-potential gold projects in the Eeyou Istchee James Bay, Canada.

We seek Safe Harbor.