Japan on Tuesday welcomed a U.N. Security Council resolution calling on Tehran to suspend all uranium enrichment-related and reprocessing activities by Aug. 31 and showed determination not to compromise on its stance against nuclear proliferation because of its economic stake in Iran.

"The adoption of the resolution reflects the international community's resolute stance in dealing with the Iranian nuclear issue and is at the same time an important step for a diplomatic resolution of the issue," Chief Cabinet Secretary Shinzo Abe said.

Foreign Minister Taro Aso, calling the adoption "one big step" in resolving the nuclear standoff, said Japan doesn't intend to change its stance in light of its stakes in the Azadegan oil field in Iran.