OM Holdings Increases FeSi Output Amid Si Metal Shift

OM Holdings

OM Holdings boosted ferro-silicon (FeSi) production in Q4 by converting silicon metal furnaces. However, manganese alloy output declined due to a furnace outage.

Production Shifts and Furnace Operations

OM Materials produced 48,061t of FeSi in Q4, an 18.3pc year-on-year increase. 2024's total FeSi output reached 190,517t, up 36.5pc from 2023. This increase resulted from switching two silicon metal furnaces to FeSi production due to weak silicon demand. At year-end, six FeSi furnaces and two silicon metal furnaces produced FeSi, while seven furnaces produced manganese alloys. One manganese alloy furnace restarted after a November outage.

Manganese Alloy and Ore Output Decline

Consequently, manganese alloy production fell 14pc to 72,769t in Q4. Manganese sinter ore production dropped 46.2pc to 23,204t. Full-year manganese alloy production rose 8pc to 317,013t. Sarawak's capacity, after furnace conversion, includes 120,000-126,000 t/yr of FeSi, 333,000-400,000 t/yr of manganese alloys, and 21,500-24,500 t/yr of silicon metal. The sinter plant can produce 250,000 t/yr of sinter ore.

Trading and Mining Developments

OM Materials traded 387,271t of ores and alloys in Q4, down from 514,757t last year, driven by lower manganese ore volumes. However, late-quarter market quotes showed signs of increase. The group trialed restarting its Bootu Creek manganese mine, aiming for 35pc Mn grades. Initial grades reached 30-33pc Mn. A second trial is planned this quarter. The ultra fines plant restart is delayed to Q2. Tshipi Borwa Manganese mine, where OM holds a stake, exported 683,090t in Q4, up from 624,681t last year. 2024's total exports increased 8.9pc to 3.5mn t.