Mona Mine, operating the copper works at Parys Mountain, switched from exporting ore by sea to by railway in 1865, two years before it reached Amlwch. Delivery prices per ton of ore were 25 shillings to London, 20 shillings to Birmingham, and 14 shillings and 2 pence to Liverpool, when carried from Gaerwen (by the LNWR). Carriage from Llangefni (then the terminus of the ACR) cost 2 shillings and sixpence more.