Titanium Sponge segmentation by type is anchored in three primary grades: commercial, aerospace, and high‑purity. Commercial grade sponge, typically 99.5 % Ti, dominates volume due to its lower cost and suitability for non‑critical components such as general‑purpose alloys and construction‑grade products. Aerospace grade, meeting stricter specifications (≥99.7 % Ti, low interstitials), commands a premium price and drives a disproportionate share of revenue because it underpins aircraft structural panels, engine casings, and fasteners where strength‑to‑weight ratio is critical. High‑purity sponge (≥99.9 % Ti) serves niche markets that require exceptional corrosion resistance and biocompatibility, notably in medical implants and specialty alloys; although its production volume is modest, its margin contribution is significant. The relative pricing, yield losses, and downstream processing requirements of each grade shape their respective shares of the overall market size, with commercial grade supplying the bulk of units, aerospace grade delivering the bulk of value, and high‑purity providing the highest per‑unit profitability.