The Transport Minister has also written to the Secretary of State for Transport, and Secretary of State for Business, Energy and Industrial Strategy, asking for their support.
Mae'r Gweinidog Trafnidiaeth eisoes wedi ysgrifennu at yr Ysgrifennydd Gwladol dros Drafnidiaeth a'r Ysgrifennydd Gwladol dros Fusnes, Ynni a Strategaeth Ddiwydiannol, i ofyn am eu cefnogaeth.