<Table> Chemical Weapons Convention <Tr> <Th_colspan="2"> Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction </Th> </Tr> <Tr> <Td_colspan="2"> Participation in the Chemical Weapons Convention <Table> <Tr> <Td> Signed and ratified Acceded </Td> <Td> Signed but not ratified Non-signatory </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Drafted </Th> <Td> 3 September 1992 </Td> </Tr> <Tr> <Th> Signed </Th> <Td> 13 January 1993 </Td> </Tr> <Tr> <Th> Location </Th> <Td> Paris and New York </Td> </Tr> <Tr> <Th> Effective </Th> <Td> 29 April 1997 </Td> </Tr> <Tr> <Th> Condition </Th> <Td> Ratification by 65 states </Td> </Tr> <Tr> <Th> Signatories </Th> <Td> 165 </Td> </Tr> <Tr> <Th> Parties </Th> <Td> 193 (List of state parties) Four UN states are not party: Egypt, Israel, North Korea and South Sudan . </Td> </Tr> <Tr> <Th> Depositary </Th> <Td> UN Secretary - General </Td> </Tr> <Tr> <Th> Languages </Th> <Td> Arabic, Chinese, English, French, Russian and Spanish </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction </Th> </Tr> <Tr> <Td_colspan="2"> Participation in the Chemical Weapons Convention <Table> <Tr> <Td> Signed and ratified Acceded </Td> <Td> Signed but not ratified Non-signatory </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> Signed and ratified Acceded </Td> <Td> Signed but not ratified Non-signatory </Td> </Tr> </Table>

Who has not signed the chemical weapons convention