Alligator Energy's Samphire resource jumps 67% to 30 Mlbs U3O8

Alligator Energy (ASX: AGE) reported a 67% increase in its Samphire uranium resource to 30 million pounds of U3O8 after defining a maiden inferred resource at the Plumbush deposit. The company plans a bankable feasibility study by mid-2027.

The resource upgrade, announced June 19, added 12 million pounds from Plumbush, a deposit five kilometres south of the primary Blackbush deposit. Alligator said the proximity allows a single central processing plant to serve multiple well-fields, avoiding duplicated capital costs.

Alligator uses in-situ recovery (ISR), a method that injects a mild leaching solution into permeable sandstone aquifers to dissolve uranium. The solution is pumped to the surface and stripped through ion-exchange columns. No blasting, crushing circuits, or permanent tailings dams are involved. For project financiers, ISR typically means lower upfront capital, suppressed operating costs, and a faster environmental permitting timeline, several uranium analysts said.

The project sits in South Australia's Gawler Craton, roughly 20 kilometres south of Whyalla. South Australia is a mature uranium jurisdiction, home to BHP's Olympic Dam and Boss Energy's Honeymoon ISR restart. The state has an experienced mining inspectorate and established export pathways, unlike Western Australia or Queensland, where state-level political friction has blocked uranium extraction.

Global uranium demand is rising on two fronts: the push for zero-carbon baseload electricity and the power requirements of AI data centres. Major tech companies are signing nuclear power purchase agreements. On the supply side, years of low prices depleted utility inventories, and geopolitical friction has cast doubt over enriched supply from Russia and Central Asia. Western utilities are hunting for secure production, traders said.

Alligator's primary task over the next 12 months is converting the 30-million-pound resource into bankable engineering metrics. Key milestones include infill drilling to upgrade inferred resources to indicated or measured categories, field leach trials to confirm recovery rates, and the mid-2027 BFS.

The company holds an Alpha Score of 72/100, classified as Moderate, in the Basic Materials sector. Its stock page is available at BHP stock page.

If infill drilling converts the inventory into reserves and leach trials maintain high recovery rates, Alligator could become Australia's next commercial ISR uranium producer. The BFS will determine whether the economics hold at current uranium prices.