UNITED NATIONS, Sept. 19 (Xinhua) -- China firmly opposes the forcible push for a snapback of sanctions against Iran, said a Chinese envoy on Friday. He said China supports keeping the Security Council sanctions against Iran terminated and voted in favor of the draft resolution. China firmly opposes the forcible push by relevant countries for a "snapback mechanism" and sees such a move as gravely undermining diplomatic efforts for a political resolution of the Iran nuclear issue, he said. Under these circumstances, Britain, France and Germany are insisting on activating the "snapback mechanism" to unilaterally punish Iran. As a JCPOA participant and a permanent member of the Security Council, China remains committed to a political settlement of the Iranian nuclear issue and to security and stability in the Middle East.