Gallai cwmnïau a dderbyniodd grantiau yng ngham un a dau’r ERF, neu gymorth gyda’u hardrethi annomestig, fod yn gymwys am arian cam tri’r ERF hefyd.
Companies that received grant funding through phases one and two of the ERF, or Non-Domestic Rate linked support, could also be eligible for phase three of the ERF.