Our Business

OM Materials (Sarawak) Sdn. Bhd. (“OM Sarawak”) is the Group’s flagship smelter complex in Samalaju, Sarawak. Construction commenced in 2013, and first production was tapped in 2014. The plant consists of 8 main workshops with a total of 16 units of 25.5 MVA furnaces, of which 6 units are allocated for the production of FeSi, 8 units for manganese alloys and 2 units for silicon metal. 

Commissioned and built to anticipate the current paradigm shift in global ferroalloy production, OM Sarawak is a greenfield smelter located in the Sarawak Corridor of Renewable Energy, Sarawak, Malaysia. Run on renewable hydro-power, it is in the centre of South East Asia and well sited along global trade routes. OM Sarawak will commission a sintering plant in 2019, widening its raw material procurement options by sintering on premises. The facility is expected to produce 250,000 metric tonnes of sinter ore per annum.

Sintering is the process of heating and fusing powdered ore into higher grade, “semi-processed” ores. Smelting is the process of converting raw ores mined from the ground into alloys used in a variety of industrial applications.

The plant has a production capacity of 120,000-126,000 metric tonnes per annum of ferrosilicon (FeSi), 333,000-400,000 metric tonnes per annum of manganese alloys alloys and 21,000 to 24,500 metric tonnes per annum of silicon metal. (see Products).