DAMASCUS, July 17: Iran’s foreign minister said on Thursday US participation in nuclear talks was positive, but France said big powers still wanted Tehran to make specific proposals to resolve a dispute over Tehran’s nuclear programme.

The United States said on Wednesday it was sending an envoy to Geneva to join nuclear talks with Iran for the first time, to show to the Islamic Republic and others that Washington wanted a diplomatic solution to the impasse.

“The American participation is positive,” Iranian Foreign Minister Manouchehr Mottaki told a news conference in Damascus. “We look forward to constructive engagement,” he said, referring to a new round of talks in Geneva on Saturday.

Senior US diplomat Williams Burns will join EU foreign policy chief Javier Solana and officials from Britain, France, Germany, Russia and China for the talks.

The powers are seeking a more detailed Iranian response to their enhanced offer of financial and diplomatic incentives to halt its nuclear activity.

French Foreign Minister Bernard Kouchner said the US presence would be “an additional asset” and that Iran’s readiness for more talks was encouraging. “We are waiting for an opening,” he told reporters in English outside a European security meeting in Vienna.

“I talked to (Iranian Foreign Minister Manouchehr) Mottaki and he was open, but open to what? That is always the case. We talk and talk with the Iranians, but it’s always disillusion.”

He said Tehran was still not addressing “the core of the subject” — an enrichment suspension, or an interim freeze on steps to expand the proliferation-prone activity, to get preliminary negotiations going.

“Iran’s (written) response to our offer said, ‘OK to dialogue’, but nothing about enrichment, as if they had not read our letter,” Kouchner said.

Asked if she expected a positive response from Iran, US Secretary of State Condoleezza Rice said: “I don’t know.

“The point we are making is that the United States is firmly behind this diplomacy and firmly behind and unified with our allies. Hopefully the Iranians will take that message,” she told reporters.

Washington has had no relations with Iran since 1980 and would have the most to offer it in terms of relief from international political and economic sanctions, making US engagement crucial to resolving the standoff, analysts say.—Reuters