The US secretary of state said on 6 June 2010 that world powers have the required number of votes to pass the sanctions resolution against Iran for what the US characterizes as continuing to enrich uranium in defiance of repeated Security Council ultimatums.
Clinton said she expected Iran would "pull some stunt in the next couple of days" to try to divert the resolution vote.
Iran's President Ahmadinejad will visit China later this week to discuss the threat of new UN sanctions over Iran's nuclear program.
Ahmadinejad will be attending Expo Shanghai 2010, but will also meet top Chinese officials to discuss Iran's nuclear program, the threat of sanctions and a fuel swap deal for a Tehran research reactor brokered by Brazil and Turkey last month, Iranian
state television reported on Monday.
China, which has emerged in recent years as Iran's main trading partner, continues to insist on diplomacy to resolve the standoff over Tehran's nuclear program but US officials say they have Beijing's support for the sanctions resolution.
Before heading to China, Iran's President Ahmadinejad was due to hold a round of meetings in Istanbul where he was attending a regional security and confidence building conference on June 6.
He was expected to meet Prime Minister Vladimir Putin of Russia, another Security Council permanent member, media reports said.
He was also due to meet Turkish Prime Minister Recep Tayyip Erdogan to discuss the nuclear fuel swap deal.
On May 17, Turkey and Brazil brokered a deal with under which Iran agreed to ship 1,200 kilograms (2,640 pounds) of its low-enriched uranium (LEU) to Turkey in return for high-enriched uranium fuel for the Tehran reactor which would be supplied later by Russia and France.
The deal was scorned immediately by the US which has ratcheted up diplomatic pressure for a fourth set of UN sanctions.
US Secretary of State Hilary Clinton said world powers have the necessary votes at the Security Council.
Sooner or later, it's time for Hilary Clinton to put up or shut up.