The conditions imposed by IAEA (International Atomic Energy Agency) on the trade of nuclear materials; also mandatory are the reglementations of the Nuclear Safeguards.
United Kingdom buy uranium from Australia and Canada.
United States buy from other countries an important percentage of the necessary uranium.
USA, Japan, South Korea, Finland, Sweden, etc.
From about 15 years uranium mines in France are closed.Being a very rich country they prefer to buy uranium from other countries avoiding pollution and problems with miners in France.
Because Australia has and other energetic resources and also because Australia has many money to buy oil, coal or liquefied methane.
because japan exports to many countries.
I think the Chinese might i really am not sure. Not only do the Chinese buy Australian wool, but most countries on Earth buy Australian wool, some of the finest wool in the world comes from Australia.
Yes, if it is possible and you have money to buy uranium for the future.
You can buy it from neighbors market, invade other friends ore mine that makes uranium or buy it from build menu.
Because they are very valuable and are a great trade. Australia mines 98% of the world's opals, and many other countries like to buy them from Australia.
Because India has his own uranium (and also thorium) resources.
The US does, but not the President personally