Democratic People's Republic of Korea

1925 Geneva Protocol
Deposit of instruments of accession (Paris) 8 December 1988 *
Antarctic Treaty
Deposit of instruments of accession (Washington) 21 January 1987  
Biological Weapons Convention
Deposit of instruments of accession (Moscow) 13 March 1987  
Convention on Environmental Modification Techniques (ENMOD)
Deposit of instruments of accession (UN) 8 November 1984  
Outer Space Treaty
Deposit of instruments of accession (Moscow) 5 March 2009  
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Deposit of instruments of accession (Moscow) 12 December 1985 *