Rwyf wedi cael ar ddeall bod cytundeb wedi cael ei wneud i'r DU ddod yn aelod o Bartneriaeth Gynhwysfawr a Blaengar y Môr Tawel (CPTPP). Ar hyn o bryd mae'r Bartneriaeth hon yn cynnwys 11 o wledydd (Canada, Mecsico, Periw, Chile Seland Newydd, Awstralia, Brunei, Singapore, Malaysia, Fietnam a Japan) yn ardal Cefnfor India a'r Môr Tawel.  Daeth i rym gyntaf ym mis Rhagfyr 2018.
I understand that an agreement has been reached for the UK to accede to the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP). The CPTPP agreement currently includes 11 countries (Canada, Mexico, Peru, Chile, New Zealand, Australia, Brunei, Singapore, Malaysia, Vietnam and Japan) in the Indo-Pacific region. It initially came into force in December 2018.