Vietnam will co-operate with the International Atomic Energy Agency (IAEA) and other international oganisations in all nuclear energy related issues for peaceful purposes, said Minister of Science and Technology Nguyen Quan at the 56th annual IAEA General Assembly in Austria.Vietnam always attaches importance to co-operation with the International Atomic Energy Agency (IAEA) and other international organisations in all nuclear energy related issues for peaceful purposes, Quan has said.