Then, in October, a ship was intercepted on its way to Libya, bearing centrifuge parts.

Iran told the agency that the suspicious uranium was contamination from centrifuge parts that it had imported.

He drew heavily on Dutch lists of nearly 100 companies that supplied centrifuge parts and materials.

American and European weapons experts also said that the shipment headed for Libya contained thousands of centrifuge parts.

He did not make concessions, though, until a ship full of centrifuge parts headed for its ports was intercepted in October.

No approval was given, even after the memo was extensively rewritten and a separate report added on Baghdad's bid for centrifuge parts.

Despite the suspension Iran promised in March, it has never halted the manufacture of centrifuge parts by private workshops.

That is during the same period when Libya paid to obtain the design and the centrifuge parts, investigators say.

The U.N. teams have now destroyed all the centrifuge parts it could find.

Only Germany has provided leads, and when it did, the inspectors quickly turned up centrifuge parts.