Any tanker passing must reveal its cargo so Iran can determine transit fee amount.

Oil exporters’ union says fees to be paid in cryptocurrency and vessels monitored for weapons

Iran is reportedly planning to demand that shipping firms pay tolls in cryptocurrency to let their oil tankers through the Strait of Hormuz.

Any tanker passing must reveal its cargo so Iran can determine transit fee amount.

Tanker firms are being advised not to pay Iran any levies in return for safe passage through the Strait of Hormuz.