The types segment classifies fluids by chemical composition and functional design, encompassing Organic (mineral‑oil based), Inorganic (water‑glycol blends), Synthetic (silicone, fluorinated), and Emerging Nanofluid categories. Organic fluids, valued for low cost and broad temperature windows, represent roughly 35% of market volume but face competition from stricter environmental regulations. Inorganic blends, prized for high thermal conductivity and fire‑resistance, hold a 30% share, especially in power‑generation cycles where heat‑transfer efficiency is critical. Synthetic fluids, offering superior oxidative stability and dielectric properties, capture 25% of the market, driven by aerospace and high‑voltage electronics applications. Nanofluids—engineered suspensions of metallic or ceramic nanoparticles—are nascent yet growing, currently 10% of sales, with rapid adoption projected in advanced cooling systems for data centers and electric‑vehicle batteries. Each subtype’s performance envelope and regulatory profile directly influences its contribution to the overall market size, reinforcing the importance of a detailed market taxonomy.