Aura Energy's bankable feasibility study values its Tiris uranium project in Mauritania at about $500 million after tax, putting the country's first uranium mine within reach. Building costs have risen 52% to $350 million, though, and most of the funding is still not in place.
At a glance
- The study shows a 28% post-tax return over a 26-year mine life, at a $90-a-pound uranium price.
- Aura is in talks with the US International Development Finance Corporation for about $150 million to $170 million of debt.
- A final investment decision is targeted for December, with first production at the end of 2028.
Background
A bankable feasibility study is the detailed engineering and cost study that lenders rely on before funding a mine. Net present value (NPV) is today's value of a project's future cash flows. Tiris lies in Mauritania's remote Tiris Zemmour region, about 1,100 km from the capital, Nouakchott.
What the study shows
The study, released on October 16, gives Tiris a post-tax NPV of about $500 million and an internal rate of return of 28%, based on a uranium price of $90 a pound. Aura's own share of the value is about $425 million. The payback period is 3.2 years from first production.
Costs have risen sharply. Development capital is now $349.8 million, 52% more than in Aura's earlier estimate. Aura blames more advanced engineering of the processing plant and higher reagent use. The return is 11 percentage points lower than in a 2024 technical report, even though the price assumption rose 12%.
The mine
Tiris is planned to produce 46.1 million pounds of uranium oxide over 26 years. Reserves grew 11% to 37.3 million pounds. The ore is soft enough to dig without drilling or blasting and needs no crushing or grinding, Aura says.
"It comes on line just as demand for uranium is accelerating," said executive chair Philip Mitchell.
Funding and security
Aura still needs most of the roughly $400 million required. It is in talks with the US International Development Finance Corporation for $150 million to $170 million of senior debt, and has a non-binding proposal from an unnamed major US fund. A pilot plant is due to start in November ahead of a final investment decision in December. Construction would take about two years.
Security is the other question. The Mauritanian army manages security in the area and has cleared informal miners from a 10-km strip along the Algerian border, security analyst Sean Hagarty of Region Alert told The Northern Miner. Unlike Niger and Mali, Mauritania has not taken mines away from foreign owners, he said.
What it means
Tiris would open a new uranium-producing country in West Africa, where Niger has long been the main producer. But investors are cautious: Aura's shares fell 3% to a one-year low of 7 Australian cents on Tuesday, valuing the company at A$69.1 million.
Our read
Outlook: neutral. Tiris would not produce before the end of 2028 and is small in global terms.
What to watch
- Results from the pilot plant starting in November.
- Whether Aura secures DFC debt and the rest of its funding before the December decision.
For information only, not investment advice.
Uranium price in India
metalscost.com India reference price as of 2026-11-01.
Detailed analysis
Timeline
- 2026-10-16: Aura Energy releases the bankable feasibility study for Tiris.
Supply Drivers
Tiris would add 46.1 million pounds of uranium oxide over 26 years from a new producing country.
What could lift prices
- Rising construction costs make new uranium mines harder to build.
- Funding for smaller uranium developers remains difficult.
What could weigh on prices
- New West African projects would add uranium supply later this decade.
- US government lenders are backing new uranium mines in the region.
Country impact
| Country | Impact | Reason |
|---|---|---|
| Mauritania | Medium | It could become a uranium producer for the first time. |
Industry impact
| Industry | Effect | Reason |
|---|---|---|
| Nuclear Energy | Positive | A new source of uranium outside the main producing countries moves forward. |
Who gains, who loses
- Mauritania: A first uranium mine would bring investment and royalties.
- Aura Energy shareholders: Shares hit a one-year low as costs rose and funding remains open.
Other ways this could play out
- If DFC debt and the US fund come through, Aura could approve Tiris in December.
- If funding falls short, the decision and first production could slip.
Price risks
- A uranium price below $90 a pound would weaken the project's returns.
- Security problems in the region could delay construction.
Technical view
Price is trading below both its 20-period and 50-period moving averages, a bearish alignment.
Computed from metalscost.com's own stored price history.
