The Billets segment follows a comparable taxonomy, with application categories mirroring those of copper cakes. Electrical Wiring billets dominate the demand curve, reflecting the industry’s reliance on bulk copper feedstock for wire drawing processes. Heat Exchangers billets, valued for their uniform grain structure, occupy the second tier, supporting the manufacture of high‑efficiency tube bundles. Industrial Machinery billets are essential for forging and machining of heavy‑duty components, while Architectural billets serve niche decorative casting and structural applications. The “Other” category captures emerging uses such as additive manufacturing feedstock. Regarding type, billets are classified as Cast, Extruded, and Rolled, each offering distinct mechanical properties. Sub‑types include Pure Copper billets, which dominate the high‑conductivity market; Copper‑Alloy billets, tailored for strength‑critical applications; and Recycled billets, increasingly important for sustainability targets. The relative weight of each sub‑type directly influences the total market size, with Pure Copper billets contributing the greatest share of revenue.