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Portugal

1991 European Energy Charter

  • signed on 17 December 1991

1994 Energy Charter Treaty

  • signed on 17 December 1994
  • ratified on 11 December 1997
  • deposited on 16 December 1997
  • entered into force on 16 April 1998
  • notification of withdrawal on 1 February 2024 (effective on 2 February 2025)

1994 Protocol on Energy Efficiency and Related Environmental Aspects

  • signed on 17 December 1994
  • ratified on 11 December 1997
  • deposited on 16 December 1997
  • entered into force on 16 April 1998
  • notification of withdrawal on 1 February 2024 (effective on 2 February 2025)

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

  • ratified on 13 July 2001
  • deposited on 21 December 2001
  • entered into force 21 January 2010

2015 International Energy Charter

  • signed on 20 May 2015