The sector in Wales, whose largest export trading partner is the EU, has been hit hard by the UK/ EU Trade and Co-operation Agreement (TCA) which came into force January 1 this year.
Mae hyn wedi arwain at ostyngiad tebygol yn y DU i werthoedd allforio'r UE, a chyfanswm gwerthoedd allforio Cymru (a rhanbarthau eraill) o fis Ionawr 2021 ymlaen.