The biggest government-owned coal producer in the world is Coal India Limited, also known as CIL, an Indian public sector undertaking (PSU). In India, coal and coal products are produced and sold by Coal India Limited and its affiliates. With its headquarters located in Kolkata, India, Coal India Limited was established in 1973.

Coal India Limited – Quick Overview
| Particular | Details |
| Company Name | Coal India Limited (CIL) |
| Type | Public Sector Undertaking (Maharatna PSU) |
| Industry | Mining – Coal Exploration, Production & Supply |
| Founded / Incorporated | 1975 (came into being following nationalisation of coal mines) |
| Headquarters | Kolkata, West Bengal, India |
| Owner / Promoter | Government of India (Ministry of Coal) |
| Chairman & MD | B. Sairam |
| Core Business | Coal mining, production, processing, marketing & supply |
| Products | Raw coal (coking & non-coking), washed coal, coal fines & allied products |
| Area Served | India (primary) & global trade presence |
| Subsidiaries / Structure | Operates through 7 wholly-owned coal-producing subsidiaries and planning/consultancy companies |
| Mining Presence | Active in 8 Indian states across open-cast, underground & mixed mines |
| Employees | 220,272+ (as of Mar 2025) |
| Market Position | World’s largest coal producer & dominant supplier in India (≈82% of national coal output) |
| Maharatna Status | Yes – conferred by Government of India |
| Role in Energy Sector | Backbone of India’s energy, supplying coal to power, steel and other key industries |
| Major Initiatives | Mechanised loading, dispatch improvements, subsidiary IPO plans (e.g., Bharat Coking Coal) |
| Stock Exchange Listing | Listed on BSE & NSE; part of NIFTY 50 index |
| Official Website | coalindia.in |
Net Worth and Market Cap
As of January 26, 2026, Coal India’s market capitalization, or net worth, was 2.77 trillion. In just one year, its market capitalization has grown by 18.54%.
Corporate Leadership
The Ministry of Coal, Government of India, has administrative authority over Coal India Limited (CIL), which has its headquarters in Kolkata. Mukesh Agrawal is the Director of Finance, Chief Financial Officer, and Director, while B. Sairam is the MD.
Overview of Services
The company provides semi-coking coal for blendable coal in steel manufacture, merchant coke manufacturing, and other metallurgical sectors, as well as coking coal for hard coke manufacturing.
Additionally, it supplies middling products for power generation, domestic fuel plants, brick manufacturing units, cement plants, and other industrial plants, as well as washed and beneficiated coal for the production of hard coke for steel and power generation, as well as for cement, sponge iron, and other industrial plants.
Additionally, the company provides coal/coke fines for use in industrial furnaces and domestic purposes; tar, heavy and light oil, and soft pitch for use in furnaces and boilers of industrial plants, power houses, oil, dye, and pharmaceutical industries, etc.; and CIL/LTC coke for use in furnaces and kilns of industrial units, as well as domestic fuel by halwais, hotels, etc. In addition, it works in coal mining and gasification, solar and renewable energy, and coal and mineral exploration consulting.
Scale of Operations
It makes up over 82% of India’s total coal production. In 2016–17, it produced 554.14 million tons of raw coal. The Government of India granted CIL the Maharatna classification in April 2011, making it one of just seven firms with that designation. As of October 14, 2015, CIL is a PSU owned by the Indian Central Government, which manages its activities through the Ministry of Coal. Among the top 20 companies accountable for one-third of the world’s carbon emissions, CIL comes in at number eight.