Letter dated 2003/12/03 from the Alternate Permanent Representative of Mexico addressed to the Secretary-General of the Conference on Disarmament informing the latter about the Government of the Republic of Guatemala's deposit on 26 November 2003 with the Government of Mexico, in its capacity as depositary of the Treaty of Tlatelolco, of the Government of the Republic of Guatemala's instrument of ratification of the amendments to the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean (Treaty of Tlatelolco)