Iran should not let time go by, and the Islamic Republic has has constantly announced its readiness for talks with P5+1 group, Iranian Foreign Minister Ali Akbar Salehi told reporters at the end of his visit to Kazakhstan on Friday.
Salehi was on an official visit to Kazakhstan to attend the "Heart of Asia Ministerial Conference" with a focus on Afghanistan.
"[Kazakhstan's President Nursultan] Nazarbayev announced his country's readiness to host the Almaty 3 meeting...," the Iranian foreign minister said.
If the P5+1 countries announce their readiness to continue the negotiations with Iran, both sides can proceed with their discussions in the Almaty 3 talks, he underlined.
Iran and the five permanent members of the UN Security Council - Russia, China, Britain, France, and the US - plus Germany, have held several rounds of talks on a range of issues, with the main focus being Iran's nuclear energy program.
The two sides wrapped up their latest round of negotiations on April 6 in the Kazakh city of Almaty. An earlier meeting had also been held there on February 26-27.
EU foreign policy chief, Catherine Ashton, represented the group of six powers while Secretary of Iran's Supreme National Security Council (SNSC), Saeed Jalili headed the Iranian negotiating team.
The U.S. and its Western allies suspect Iran of developing a nuclear weapon - something that Iran denies.
The Islamic Republic has on numerous occasions stated that it does not seek to develop nuclear weapons, using nuclear energy for medical researches instead.