More than 40 countries which export nuclear technology began a four-day meeting in Oslo Monday to dicuss ways of preventing nuclear proliferation.
The Nuclear Suppliers Group (NSG) is an informal organisation of 44 countries which export nuclear materials and technology, all of them signatories to the Nuclear Non-Proliferation Treaty.
It includes major exporters such as Britain, France, Russia and the United States.
Iran and North Korea are likely to be high on the agenda.
"The discussions among the member states…are not public, but at the end of the session on Friday there will be a statement", Richard Ekwall, outgoing group president, said.
The group works through strengthening export controls.
"There are a lot of products which can be used to perfectly legitimate ends, but which can also be used to construct weapons of mass destruction", Ekwall said.
The meeting in Oslo has taken on a special importance since the NSG could be a major instrument for cracking down on proliferation, particularly with the United States wanting to do more to monitor exports.