Mr. Jonathan Hamel reports

MOSAIC ANNOUNCES THE APPOINTMENT OF DIRECTOR AND FINANCING

Mosaic Minerals Corp. has nominated Robert Gagnon, PGeo, as director of the company. Mr. Gagnon holds a bachelor's degree in geology from the University of Quebec in Chicoutimi and is a member of the Ordre des geologues du Quebec. Mr. Gagnon has extensive experience in managing exploration projects and evaluating deposits. He was president of Pershimex Resources Corp. from 2013 until its amalgamation with Abcourt Mines Inc. in May, 2023.

"We are very pleased with the appointment of Robert Gagnon, an exploration geologist who brings another dimension of expertise to our board of directors. His experience and knowledge of the Golden Island project are valuable assets for its future development," said Jonathan Hamel, president and chief executive officer of Mosaic.

Financing

The company is also pleased to announce a non-brokered private placement for gross proceeds of up to $500,000 from the combined sale of up to seven million units of the company at a price five cents per unit, and up to 2,142,857 flow-through units of the company at a price of seven cents per FT unit. The company intends to use the proceeds from the offering toward exploration on the Golden Island project and for general corporate purposes.

Each unit will consist of one common share of the company and one common share purchase warrant. Each warrant will entitle the holder thereof to purchase one common share at a price of seven cents for a period of 24 months from the date of issuance.

Each FT unit will consist of one common share of the company to be issued as a flow-through share within the meaning of the Income Tax Act (Canada) and one common share purchase warrant. Each warrant will entitle the holder thereof to purchase one common share at a price of nine cents for a period of 12 months from the date of issuance.

The company may pay finders' fees to third parties sourced by finders. The FT units will be offered by way of the accredited investor and minimum amount investment exemptions under National Instrument 45-106 -- Prospectus Exemptions in all the provinces of Canada. The securities issuable pursuant to the sale of the FT units will be subject to a statutory hold period in Canada ending on the date that is four months plus one day following the closing date of the offering.

The gross proceeds from the sale of the FT units will be used by the company to incur eligible Canadian exploration expenses that will qualify as flow-through mining expenditures as such terms are defined in the Income Tax Act (Canada) related to the company's projects in Canada. All qualifying expenditures will be renounced in favour of the subscribers of the FT units effective Dec. 31, 2025.

The offering is subject to certain conditions including, but not limited to, receipt of all necessary approvals including the approval of the Canadian Securities Exchange.

Grant of stock options

The company also announces that incentive stock options have been granted to consultants to purchase up to 250,000 common shares at a price of 7.5 cents per share for five years, pursuant to its stock option plan. The company currently has 78,490,571 shares issued and outstanding, along with 5.9 million options (including the options described above) and 6,498,375 warrants outstanding.

About Mosaic Minerals Corp.

Mosaic Minerals is a Canadian mining exploration company listed on the Canadian Securities Exchange (CSE: MOC) developing the Golden Island project located in Abitibi, Que.

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