The three European countries which have been negotiating with Iran over its nuclear program have proposed to restart talks after a stall earlier this year.
Foreign ministers of the United Kingdom, Germany and France delivered a letter to Tehran on Sunday agreeing to renew talks.
The move was a response to an Iranian request earlier this month.
Talks came to a standstill after Iran renewed uranium conversion in August, in contravention of a November 2004 agreement.
The international community has been scrutinizing Iran’s nuclear program for more than two years, fearing it is being covertly used for manufacturing nuclear weapons.
The International Atomic Energy Agency (IAEA), the United Nations nuclear watchdog, met last week to discuss further steps with Iran, but the EU and the U.S. decided not to press for a referral of Iran to the U.N. Security Council, where it could face sanctions.
Iran insists its nuclear program is for peaceful purposes and retains its right to possess nuclear technology.
Talks could begin around December 10, the Iranian Mehr news agency reported.