Research summary
xU3O8 is a token for a share of physical uranium oxide concentrate (U3O8, “yellowcake”). Trilitech Design Limited, a British Virgin Islands company in the Tezos ecosystem, offers it. Archax Ltd, an FCA-regulated London firm, holds the uranium as bare trustee in a storage account at Cameco’s Canadian conversion facility and keeps the register. The token contract on Etherlink is that register: a balance is a beneficial co-ownership share in the trust pool. On 31 July 2026 Cameco’s statement showed 38,464.626 kgU in the Archax account against 1,600,000 tokens, about one troy ounce of U3O8 per token, worth about $9 million. The legal claim is better than most tokens in this class: property on trust, not a promise. The assessment is adverse for three reasons. First, the holder cannot take the uranium. Only a party regulated by a national nuclear regulator, with its own account at a licensed facility, can redeem, so for an advisory client the only exit is a sale on the uranium.io interface or an exchange, with no peg and no issuer bid. Second, one externally owned address holds every admin role on the Etherlink contract: it can mint, pause, upgrade the code, blacklist, and wipe any holder’s balance, and on 2026-09-23 it had 159 addresses on the blacklist. Third, the only reserve evidence is a one-page monthly balance statement from Cameco, not an attestation, and beneficiary status turns on Archax deciding “in its absolute discretion” that a buyer may be one.
Observable review triggers
- Control of the Etherlink contract moves from the single address 0x04009bc7…c807 to a multisig with a timelock
- An independent firm publishes an attestation of the Archax account at Cameco, not only the monthly balance statement
- uranium.io publishes a redemption or buyback path open to holders who are not nuclear-regulated
- Archax publishes the deed of trust, or its discretion over who becomes a beneficiary is removed
- A wipe burns a holder’s balance, the KYC switch is turned on, or the contract implementation changes
- Token supply grows through fee minting or new issuance without a matching rise in the Cameco balance
Facts on file
- Research assessment
- Adverse
- Client selection
- Not considered
- Exposure
- tokenized commodity
- Chains examined
- Etherlink
- Instruments
- xU3O8
- Reviewed
- Next review