Supermix Concrete Ltd has been producing high quality aggregates and Concrete since 1963. Robert Elvin Thompson established Milltown Gravel Ltd in 1963 washing sand and gravel at Milltown, Newtownstewart Co Tyrone. In 1972 Elvin purchased his first locally manufactured Finlay Block machine

With over fifty years experience supplying high quality aggregates and concrete products across the North West of of Ireland covering Counties Tyrone, L/Derry, Donegal. Supermix operate from four concrete plant locations and two sand and gravel quarries. All products concrete, blocks and aggregates quality certified by NSAI conforming to the latest european standards.