The contract details notice is published on the Welsh digital platform (Sell2Wales) and central digital platform after the contract has been entered into.
Cyflwynir manylion y trafodiadau hyn yma er mwyn sicrhau tryloywder y trafodiad sector cyhoeddus mawr hwn, gyda chytundeb y prynwr (Trafnidiaeth Cymru) a'r gwerthwr (Network Rail).