Uranium.io Review 2026: Tokenized Physical Uranium (xU3O8)

Uranium.io is a tokenized real-world asset platform that lets investors own and trade physical uranium ore concentrate (U3O8, or yellowcake) through a token called xU3O8. Each token represents a unit of ownership of uranium held by Archax as custodian at a regulated depository.

DefiLlama tracks it in the RWA category on Etherlink, with about $10.5 million in TVL, a 37.1% seven-day increase and a listing date of April 11, 2025. No audits are listed there. The homepage describes the product as powered by Tezos, Archax and Curzon Uranium.

The homepage says Uranium.io is evolving into Metals.io, which suggests a wider commodities offering. The project does not give details, so existing and new users should check what that means for xU3O8.

Uranium.io holds physical uranium ore concentrate at a regulated depository, with Archax acting as custodian for investors. The platform issues xU3O8 tokens that represent units of ownership of that uranium, and a smart contract ledger records who owns what.

A user signs up, adds funds in USDC and buys xU3O8, which can then be held or traded on exchanges that list it. The homepage describes the structure as direct ownership of the physical asset rather than a derivative, with the token acting as the ownership register.

The price follows the uranium spot market, which the site tracks with a live price feed. DefiLlama lists the token on Etherlink, while the homepage mentions Tezos technology, so readers should confirm which network their tokens sit on.

The homepage says there are no asset management fees, only custody and administration fees. The amounts of those fees are not published.

Users should also expect exchange trading fees and network costs where they trade xU3O8. The exact schedule would be visible in the account area, the help center or on the exchanges that list the token.

Safety rests largely on the custodian and depository rather than on code alone. The homepage says the uranium is held by Archax in a dedicated custody account at a regulated depository. The project does not include any independent audit or proof-of-reserves report, and DefiLlama lists no audits.

Holders face counterparty risk with the custodian, platform and depository, plus smart contract and exchange risk. Uranium prices can swing with energy policy and geopolitics, as the homepage itself notes. The homepage performance chart is illustrative, and past performance is not a reliable guide. Only invest what you can afford to lose, and check the rules where you live.

This is for investors who want commodity exposure to uranium, including people new to crypto who are comfortable with USDC and exchange accounts. It is less suited to anyone who wants a purely trustless DeFi product or who is unwilling to depend on a custodian.