AEE are shipping Uranium Oxide.There are different requirements for shipping different concentrations of uranium ore/stages of enriched uranium. (See the table in the reference).
As the table shows, Class 7 containers are not required for shipping at this stage.
‘Uranium oxide concentrate ('yellowcake')
Uranium oxide concentrate, sometimes called yellowcake, is transported from mines to conversion plants. Transport takes place in 200-litre drums, each holding about 400 kg U3O8, packed into normal six-metre shipping containers. No radiation protection is required beyond having the steel drums clean and within the shipping container.
The importance of safe and secure yellowcake transport is evidenced by the fact that 80% of uranium is mined in just five countries, only one of which (Canada) uses uranium for nuclear power.
Every year around 50 shipments of 500 containers of Australian uranium are safely transported by road and rail to ports in Adelaide and Darwin where they are shipped, with no recorded incident affecting public health. Australia is the world's third largest miner of uranium.’
(20min delay)