Within the Ferro Silicon Magnesium segmentation framework, application remains the dominant driver of demand. Steelmaking accounts for roughly 70 % of total volume, as the alloy is injected into ladles to adjust deoxidation, alloying, and temperature control, directly influencing melt quality and productivity. The foundry sector follows with an estimated 15 % share, where the material is used in cast iron and steel casting processes to improve fluidity and reduce inclusions. Automotive manufacturers consume about 8 % of the market, primarily for high‑strength steel components that require precise Si‑Mg balances to meet weight‑reduction targets. The aerospace niche represents approximately 4 % of demand, leveraging the alloy’s ability to produce lightweight, high‑temperature‑resistant alloys. The residual 3 % falls under other applications, including infrastructure, energy, and specialty alloys, each contributing modestly but collectively supporting market resilience. These percentages translate into proportional revenue streams, confirming that steelmaking alone generates the majority of the Ferro Silicon Magnesium market size in global terms.