FACTBOX - World powers incentives package to Iran

(Reuters) - French Foreign Minister Bernard Kouchner said on Thursday big powers were waiting for specific proposals from Iran in new talks over its disputed nuclear work and Iran's foreign minister said U.S. participation was "positive.

World powers had handed Iran a package of incentives on June 14 to try and persuade it to suspend nuclear work the West fears is aimed at developing bombs, a charge Tehran denies.

The package -- agreed by the United States, Russia, China, Britain, France and Germany -- says formal negotiations on the offer can start as soon as Iran suspends uranium enrichment, which can have both civilian and military purposes.

The incentives package is a revised version of an offer spurned by Iran in 2006, which included civilian nuclear cooperation as well as wider trade in aircraft, energy, high technology and agriculture.

Iran has repeatedly rejected U.N. demands to halt enriching uranium, which can be used as fuel for power plants or provide material for weapons if refined much more.

Here are excerpts from an accompanying letter from the foreign ministers of the six powers addressed to Iran's Foreign Minister Manouchehr Mottaki, followed by key points from the incentives package, called Possible Areas of Cooperation with Iran.

* LETTER FROM SIX POWERS' FOREIGN MINISTERS TO IRAN:

-- "We ... are convinced that it is possible to change the present state of affairs. We hope that Iran's leaders share the same ambition.

-- Iran is, of course, free to suggest its own proposals. Formal negotiations can start as soon as Iran's enrichment-related and reprocessing activities are suspended. We want to be clear that we recognise Iran's rights under the international treaties to which it is a signatory. We fully understand the importance of a guaranteed fuel supply for a civilian nuclear programme.