Ar 4 Tachwedd 2016, cyhoeddodd Cwnsler Cyffredinol Cymru, Mick Antoniw AC ei fwriad i wneud cais am ganiatâd i gyfrannu yn yr apêl.
On 4th November 2016, the Counsel General for Wales, Mick Antoniw AM announced his intention to apply for permission to intervene in the appeal.