In the Foundry Coke for Automotive Casting market taxonomy, the type‑based segmentation isolates three core coke classifications that shape supply dynamics. Anthracite coke—characterized by high carbon content (>90 %) and minimal volatile matter—captures approximately 40 % of usage, favored for its consistent burn rate and low ash generation in high‑precision engine block cores. Metallurgical coke, comprising about 35 % of the market, offers a broader particle size distribution and higher mechanical strength, making it suitable for transmission housing and suspension component molds where structural integrity under rapid temperature fluctuations is essential. Calcined coke, representing the remaining 25 %, undergoes a secondary heat treatment to reduce residual moisture and volatile compounds, delivering enhanced porosity control for exhaust system castings that demand superior gas permeability. Within each classification, sub‑types such as low‑ash, high‑density, and ultra‑fine granules are selected to align with specific casting tolerances, thereby directly influencing the total market volume through differentiated performance attributes.