Mr. David Greenway reports

URANIUM ONE MINING CORP. ANNOUNCES UPSIZED $2M PRIVATE PLACEMENT

Uranium One Mining Corp. has increased the size of its previously announced non-brokered private placement, as disclosed in its April 30, 2026, news release. The offering consists of a combination of non-flow-through (NFT) units and flow-through (FT) units, for aggregate gross proceeds of up to $2-million.

The upsized private placement comprises up to 3,333,333 NFT units at a price of 30 cents per NFT unit and up to 3,333,333 FT units at a price of 30 cents per FT unit.

Each NFT unit will consist of one common share of the company and one transferable common share purchase warrant. Each warrant will entitle the holder to acquire one additional share for a period of 12 months from the date of issuance at a price of 50 cents per share.

Each FT unit will consist of one common share of the company that qualifies as a flow-through share within the meaning of the Income Tax Act (Canada) and one warrant. Each warrant will entitle the holder to acquire one share for a period of 12 months from the date of issuance at a price of 50 cents per share.

If the company's common shares close at or above 75 cents per share for a period of five consecutive trading days, the company may accelerate the expiry date of the warrants by issuing a news release or other permitted notice to the holders thereof. In such event, the warrants will expire on the date that is 30 days following the date of such notice.

The warrants will include a provision restricting exercise if such exercise would result in the holder, together with any persons acting jointly or in concert with the holder, owning 10 per cent or more of the issued and outstanding common shares of the company immediately following such exercise.

The company intends to use the net proceeds of the private placement for exploration and drilling programs, property payments, and general working capital.

The company will incur Canadian exploration expenses as defined in Subsection 66.1(6) of the Income Tax Act (Canada) and flow-through critical mineral mining expenditures as defined in Subsection 127(9) of the Income Tax Act (Canada), and will renounce such qualifying expenditures to the subscribers of FT shares with an effective date no later than Dec. 31, 2026, in an aggregate amount not less than the total subscription proceeds received for the FT shares.

The private placement is non-brokered; however, the company may pay finders' fees to eligible arm's-length parties, consisting of: (i) a cash commission of up to 8 per cent of the gross proceeds raised from subscribers introduced by such finders; and (ii) non-transferable finders' warrants equal to up to 8 per cent of the number of NFT units sold to such subscribers, with each finder's warrant exercisable at 50 cents per share for a period of 24 months from the date of issuance.

All securities issued pursuant to the private placement will be subject to a statutory hold period of four months and one day from the date of issuance, in accordance with applicable securities laws.

Completion of the private placement is subject to certain conditions, including, but not limited to, the receipt of all necessary regulatory and stock exchange approvals. There can be no assurance that the private placement will be completed as proposed or at all.

The company anticipates the first closing of the private placement on or about May 18, 2026, with a second and final closing of the private placement on or about May 29, 2026.

About Uranium One Mining Corp.

Uranium One Mining is a Canadian mineral exploration company focused on the acquisition, exploration and development of uranium projects and select battery metals assets. The company is advancing a diversified portfolio of high-potential projects in Canada, Paraguay and Argentina, with a strategic focus on assets positioned to benefit from the increasing global demand for nuclear energy and secure energy supply chains.

The company's projects include the Quark uranium project, the Yuty Prometeo uranium project and the Nucleon uranium project, each of which offers significant exploration upside and potential for resource expansion.

Uranium One Mining is committed to responsible exploration practices, disciplined capital allocation and the creation of long-term shareholder value through the systematic advancement of its project portfolio.

We seek Safe Harbor.