1991 European Energy Charter

• signed on 17 December 1991

1994 Energy Charter Treaty

• signed on 17 December 1994
• ratified on 13 February 2001
• deposited on 5 April 2001
• entered into force on 4 July 2001

1994 Protocol on Energy Efficiency and Related Environmental Aspects

• signed on 17 December 1994
• ratified on 13 February 2001
• deposited on 5 April 2001
• entered into force on 4 July 2001

1998 Amendment to the Trade related provisions of the Energy Charter Treaty

• trade Amendment entered into force in Türkiye on 1 February 2018

2015 International Energy Charter

• signed on 20 May 2015