Monolithisch India Limited, founded in August 2018, manufactures and supplies ramming mass, a key heat-insulating material used in induction furnaces in the iron and steel industry. Their product range includes SGB-777, SLM-999, BG-77, Quartzite Grain SLM-980, and SLM-980. The company is ISO certified and focuses on delivering high-quality materials to iron, steel, and foundry plants, with most customers located in Eastern India, particularly West Bengal, Jharkhand, and Odisha. Its manufacturing facility is situated in Purulia, West Bengal. The client base has increased from 43 in 2023 to 61 in 2025, and as of March 31, 2025, the company employs 26 full-time workers along with contract staff for additional factory operations.