Amlwch’s economic situation has changed since the boundaries for the enterprise zone were originally drawn, following the closure of Rehau and decisions on Magnox decommissioning and Wylfa Newydd.
Mae Gweinidog yr Economi, Trafnidiaeth a Gogledd Cymru wedi cytuno i gynnwys Ystâd Ddiwydiannol Llwyn Onn, a hen Safle Octel yn Amlwch, o fewn Ardal Fenter Ynys Môn.