<P> All 192 parties to the Chemical Weapons convention are automatically members of the OPCW . Other states which are eligible to become members are UN member states Israel, which is a signatory state that has not ratified the Chemical Weapons Convention, and Egypt, North Korea and South Sudan, which have neither signed nor acceded to the Chemical Weapons Convention, as well as UN observer state Palestine, which has also neither signed nor acceded to the CWC . Angola was the most recent state to submit its instrument of accession to the treaty . </P> <P> The Organisation is led by the Director - General, who is directly appointed by the Conference for a maximum of two four - year terms . An overview of Directors - General is shown below . </P> <Table> <Tr> <Th> Country </Th> <Th> Name </Th> <Th> Start of term </Th> </Tr> <Tr> <Td> Brazil </Td> <Td> José Bustani </Td> <Td> 13 May 1997 </Td> </Tr> <Tr> <Td> Argentina </Td> <Td> Rogelio Pfirter </Td> <Td> 25 July 2002 </Td> </Tr> <Tr> <Td> Turkey </Td> <Td> Ahmet Üzümcü </Td> <Td> 25 July 2010 </Td> </Tr> </Table> <Tr> <Th> Country </Th> <Th> Name </Th> <Th> Start of term </Th> </Tr>

Organization for the prohibition of chemical weapons (opcw