Yn syth wedi i rybudd elw Carillion ymddangos yn y wasg ym mis Gorffennaf 2017, oedodd Llywodraeth Cymru ei phroses gaffael er mwyn cynnal ymchwiliadau i sefydlogrwydd ariannol y cwmni.
As soon as Carillion’s profit warning appeared in the press in July 2017, the Welsh Government paused its procurement process so as to allow investigations to be carried out as to Carillion’s financial stability.