Saudi Arabia
Practice Relating to Nuclear Weapons
In 1996, during a debate in the First Committee of the UN General Assembly, Saudi Arabia stated:
The Kingdom of Saudi Arabia supports and participates in international and regional efforts aiming at the elimination of nuclear weapons and other weapons of mass destruction. In this connection, the Kingdom of Saudi Arabia signed the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on Their Destruction, on 9 August 1996 before the Convention entered into force. Thus, Saudi Arabia has become party to all Treaties related to weapons of mass destruction. 
Saudi Arabia, Statement before the First Committee of the UN General Assembly, UN Doc. A/C.1/51/PV.10, 21 October 1996, p. 5.