Daeth y gynhadledd â’r Ysgrifennydd Gwladol Simon Hart, cynrychiolwyr Llywodraeth Cymru a Llywodraeth y DU, Arweinydd Castell-nedd Port Talbot, Rob Jones, yn ogystal ag Arweinydd Rhondda Cynon Taf, Andrew Morgan, yr Awdurdod Glo a Chyfoeth Naturiol Cymru at ei gilydd.
The summit brought together Secretary of State Simon Hart, Welsh Government and UK Government representatives, Neath Port Talbot Leader Rob Jones, as well as Rhondda Cynon Taf Leader Andrew Morgan, fire and rescue and emergency services, the Coal Authority and Natural Resources Wales.