China
China has both a civilian and military nuclear capability.
"China has always stood for the complete prohibition and thorough destruction of nuclear weapons, and adheres firmly to the nuclear strategy of self-defense. We have faithfully abided by our commitment that we will not be the first to use nuclear weapons at any time and under any circumstances and that we will unconditionally not to use or threaten to use nuclear weapons against non-nuclear-weapon states or nuclear-weapon-free zones. In fact, China is the only nuclear weapon state that has undertaken such a commitment. China has always exercised the utmost restraint on development of nuclear weapons. We have never participated in any form of nuclear arms race and have never deployed such weapons on foreign soil. This, in itself, is our unique contribution to nuclear disarmament.
China has always supported and participated actively in the international non-proliferation efforts. We have fulfilled strictly our obligations of international non-proliferation and put in place a comprehensive system of laws and regulations on export control which are basically identical with international practices. China calls for peaceful resolutions to the nuclear issue on the Korean Peninsula and the Iranian nuclear issue through dialogue and negotiation, and has made unremitting efforts toward this goal. We are ready to work with other relevant parties to actively promote the denuclearization of the Korean Peninsula and proper settlement of the Iranian nuclear issue, with a view to safeguarding international non-proliferation regime and maintaining regional peace and stability."
Kang Yong, Head of the Chinese Delegation, at the General Debate of the United Nations Disarmament Commission