Himadri Speciality Chemical Limited (HSCL), , is an integrated manufacturer of various carbon-based products starting from coal tar. The company is based in West Bengal and operates a 7,00,000mtpa coal tar distillation unit, 2,50,000mtpa carbon black unit, 50,000mtpa sodium naphthalene formaldehyde unit, and units for other advanced carbon-based materials. The coal tar distillation unit is the single-largest such facility in India, and the company commands a leading position in the domestic CTP and CB markets. HSCL has a presence in Gujarat, Andhra Pradesh, and Chhattisgarh. The company was incorporated in 1987 and has its registered office located in Kolkata, West Bengal.