OPCW Member States
The OPCW Member States represent about 98% of the global population and landmass, as well as 98% of the worldwide chemical industry.
Select a Member State below to know the dates on which it signed the Convention and/or deposited its instruments of ratification, accession, acceptance or succession with the Depositary, and on which the Convention entered or will enter into force for it. In addition, it appears its Permanent Representation to the OPCW.
S: Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Samoa San Marino São Tomé e Príncipe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Solomon Islands Somalia South Africa Spain Sri Lanka Sudan Suriname Swaziland Sweden Switzerland Syria
OPCW is the fastest growing international disarmament organisation in history. The United Nations has called upon all States to join the CWC and to rid the world of the threat chemical weapons pose to international security.
See the evolution of the Status of Participation in the Convention.