Junior Explorer UraniumX (CSE:STMN ) Just Landed a Kingmaker: IsoEnergy Takes 15.6% Stake, Hands Over 24.4M Pounds of Quebec Uranium - Why?

STMN also just wrapped a 4000M drill program, 4km away from Iso's world-class Hurricane discovery in Athabasca Basin, giving ISO direct exposure to STMN drill-bit success. Assays pending.

CSE: STMN / OTCQB: STMXF | July 9 Close: $0.10 | Market Cap: ~$9.75M CAD

This morning UraniumX announced a transaction that changes the shape of this story.

IsoEnergy (TSX: ISO / NYSE American: ISOU), the ~$925M market cap owner of the Hurricane deposit, and one of the most credible uranium developers in the world, is taking an approximately 15.6% strategic equity position in UraniumX.

IsoEnergy, through its wholly-owned subsidiary Consolidated Uranium, receives 18,000,000 UraniumX shares at a deemed price of $0.10 and a 2.0% NSR.

In exchange, UraniumX acquires 100% of the Dieter Lake uranium project in North-Central Quebec. And also gets a Board nomination right.

There’s more. Iso also gets participation and top-up rights on future issuances.

What UraniumX Just Got

Dieter Lake carries a historical estimate of 19.3 million tonnes at 0.057% U₃O₈.

Approximately 24.4 million pounds of U₃O₈, (historical estimate) traced over 6 km of strike, open to the southwest, with most of the 8,106-hectare property having seen little or no modern drilling.

A higher-grade subset within the historical model comes in at approximately 6.8 million tonnes at 0.108% U₃O₈.

But this is pounds already identified in the ground, acquired for shares.

Why IsoEnergy Is Doing This

IsoEnergy already owns Hurricane in Saskatchewan’s famed Athabasca Basin, the most productive uranium mining district in the world, and is drilling directly north of UraniumX’s Murphy Lake ground on the same Larocque corridor.

They know exactly what Murphy Lake is, and exactly what F4 Uranium and UraniumX have been finding on it.

Visually identified pitchblende in hole one, two mineralized trends now defined across 1.6+ km of combined strike, anomalous radioactivity in 5 of 6 target areas drilled.

Why did IsoEnergy take a major stake in shares of STMN now?

My read: IsoEnergy wants an early seat at the table on the most likely takeout target adjacent to their own operating footprint.

If Murphy Lake hits meaningful uranium at assay, IsoEnergy is now positioned as an insider on the acquiror side rather than a bystander watching a competitor bid.

They get a board seat nomination, and rights to maintain their percentage position on future financings. IE: They do not want to be diluted out if there is a discovery.

That’s the deal underneath the deal.

Quebec: The Regulatory Iceberg is Breaking, not Melting

First I want to place the ugly fact on the table: Dieter Lake sits in a jurisdiction with a de facto uranium moratorium since 2013.

I believe STMN took the deal and gave 15.6% of their company away for this asset because they know the blockage is starting to show major cracks.

This moratorium was not legislated, never formally reconducted, and increasingly at odds with federal policy.

Canada named uranium a critical mineral.

Ottawa is running a $2B Critical Minerals Sovereign Fund and calling 2026 a pivotal year for the nuclear industry.

Global uranium demand is rising while supply is tightening.

Nova Scotia tabled a bill in February 2025 to lift its own decades-old ban.

The pressure on Quebec, and Canada, is mounting.

Icebergs like this don’t melt gradually in this business, they break.

Any credible signal of provincial movement re-rates Quebec uranium assets overnight, and UraniumX just acquired 24.4M historical pounds for shares.

Murphy Lake Is Still the Story

Do not lose sight of what’s actually turning drill bits.

Murphy Lake, 5km south of IsoEnergy’s Hurricane, 4km from Cameco’s La Rocque Lake Zone, 4km from Cosa Resources’ Cyclone trend — just wrapped a 4,092-metre drill program.

This drill program was expanded from 2,500m mid-campaign and returned anomalous radioactivity in 5 of 6 target areas and defined two mineralized trends totalling 1.6+ km of combined strike length.

Assays are pending for Q3.

A reminder of who is directing STMN’s uranium development strategy:

Directing exploration: Ken Wheatley (47 years Athabasca, 8 discoveries including McArthur River and Cigar Lake)

Vincent Martin (former CEO of Orano Canada, 12 years running Cigar Lake, McArthur River, and McClean Lake)

Dr. Yuanming Pan (30+ years Athabasca unconformity research at U of Sask)

and Matthew Schwab (Arrow discovery team, Roughrider sold to Rio Tinto for $654M).

This is the most experienced technical roster ever assembled at a $10M junior in this basin.

Now they have IsoEnergy sitting alongside them.

Actionable Insight

CEO Esen Boldkhuu said: “On closing, UraniumX becomes a multi-jurisdiction Canadian uranium company, and we intend to reward that conviction.”

For a $9.75M market cap company to attract a strategic equity commitment from the owner of Hurricane, in exchange for 24.4M historical pounds of Quebec uranium and no cash (and an option for a board seat and future financing participation), is an impressive accomplishment and speaks to the quality of assets and people that STMN has assembled.

Assays from the 4,092-metre Murphy Lake program remain the primary catalyst.

Everything else is now stacked on top of that.

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