The UN Security Council could vote as early as next week on a draft resolution that would make a halt to Tehran's enrichment program mandatory.

The package, presented to Iran last month, includes the possible removal of restrictions on US and European manufacturers from exporting civil aircraft to Iran.

It promises to support the building of light water power reactors in Iran which would receive a regular supply of fuel from an enrichment facility in Russia.

At the same time a buffer stock would be established to hold up to five years' supply of nuclear fuel dedicated to Iran, under the supervision of the International Atomic Energy Agency.

On trade issues, the incentives include a commitment to improve Iran's access to the global economy by supporting its full integration into multilateral bodies like the World Trade Organisation.

There would also be support for the modernisation of Iran's telecommunication infrastructure and advanced Internet provision, possibly through the removal of relevant US and other export restrictions.

And there were agricultural incentives in the form of access to US and European agricultural products.

Despite Iran's protestations that it was still studying the offer, world powers meeting in Paris on Wednesday said they had lost patience and were sending Iran back to the UN Security Council and the threat of sanctions.

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