Sergei Lavrov said, "When talks get underway, options promoting the non-proliferation regime will be considered. And in this context, I think our proposal to enrich uranium on Russian soil for Iran's civilian nuclear program will be well in demand."
On Tuesday, a Russian nuclear industry official had said Russia's proposal to set up a joint uranium enrichment venture with Iran is unlikely to ever materialize, citing lack of interest on the part of the Iranian leadership.
Moscow had come out with the offer earlier this year to allay Western governments' fears Tehran may be pursuing a covert nuclear weapons program.
The foreign minister also confirmed that Ali Larijani will be visiting Moscow on Friday.
"The Secretary of the Supreme National Security Council, Larijani, will arrive in Moscow tomorrow for talks at Russia's Security Council and Foreign Ministry," Lavrov said, after a meeting with his counterpart from Bahrain.
Lavrov also said Iranian Foreign Minister Manouchehr Mottaki's Moscow visit had been postponed at Tehran's request.
Following Iran's refusal to halt uranium enrichment, European powers have proposed a draft UN Security Council resolution on sanctions against the country, which the United States wants toughened, but which Russia and China want reduced.
Specifically, Moscow rejected clauses introducing broad sanctions on Iran's nuclear and missile programs and restricting the supply of fuel to the Bushehr nuclear plant, which Russia is building in southern Iran.
The foreign minister said Moscow's stance on Iran remains unchanged, with its principal 'defining criterion' being 'to perpetuate the non-proliferation regime.'
