"Yn wyneb hyn, mae Llywodraeth Cymru yn gwneud popeth posibl – gan weithio gyda busnesau a sefydliadau ledled Cymru – i baratoi ar gyfer y canlyniad gwaethaf posibl hwn, a diogelu swyddi a thwf cynaliadwy.
“Against this backdrop the Welsh Government is doing everything in its power – working with businesses and organisations across Wales – to prepare for this worst case outcome and protect jobs and growth.