Iran has been at the center of international concerns over its nuclear program, which some countries suspect is a covert program to develop nuclear weapons. Tehran has consistently denied the claims, and says it needs nuclear power for civilian purposes.
Ali Larijani, currently in China, said the NPT is "a good international treaty."
He reiterated Iran's intention to develop civilian nuclear power on the basis of this treaty, but not to create nuclear weapons.
"But if [some countries] pursue an unjust policy toward us, and if there are threats, the situation may change," he said.
"Our power resources are limited and we need to develop new energy opportunities," Larijani said adding that the Iranian national doctrine does not include the creation of nuclear weapons.
On December 23, the UN Security Council unanimously adopted a resolution against Iran for refusing to suspend its nuclear research program. The resolution stipulates that all countries must stop supplying Iran with nuclear technology and materials that could enable the Islamic Republic to proceed with its suspected atomic weapons program.
