- Ferrous Metallurgical Industries
- Integrated Iron and Steel
- Ferrow-alloys
- Special Steels
- Non-ferrous metallurgical Industries
- Primary Metallurgical Industries, namely, zinc, lead, copper, manganese and aluminium
- Foundries (ferrous and non-ferrous)
- Castings and forgings including cleaning or smoothening/roughening by sand and shot blasting
- Coal (including coke) industries
- Coal, Lignite, Coke, etc.
- Fuel Gases (including Coal Gas, Producer Gas, Water Gas)
- Power Generating Industries
- Pulp and paper (including paper products) industries
- Fertiliser Industries
- Nitrogenous
- Phosphatic
- Mixed
- Cement Industries
- Portland Cement (including slag cement, puzzolona cement and their products)
- Petroleum Industries
- Oil Refining
- Lubricating Oils and Greases
- Petro-chemical Industries
- Drugs and Pharmaceutical Industries
- Narcotics, Drugs and Pharmaceuticals
- Fermentation Industries (Distilleries and Breweries)
- Rubber (Synthetic) Industries
- Paints and Pigment Industries
- Leather Tanning Industries
- Electro-plating Industries
- Chemical Industries
- Coke Oven by-products and Coal tar Distillation products
- Industrial Gases (nitrogen, oxygen, acetylene, argon, carbon, dioxide, hydrogen, sulphur dioxide,nitrous oxide, halogenated hydrocarbon, ozone, etc.)
- Industrial Carbon
- Alkalies and Acids
- Chromates and dichromate’s
- Leads and its compounds
- Electrochemical (metallic sodium, potassium and magnesium, chlorates, per chlorates and peroxides)
- Electro thermal produces (artificial abrasive, calcium carbide)
- Nitrogenous compounds (cyanides, cyan amides and other nitrogenous compounds)
- Phosphorous and its compounds
- Halogens and Halogenated compounds (Chlorine, Fluorine, Bromine and Iodine)
- Explosives (including industrial explosives and detonators and fuses)
- Insecticides, Fungicides, Herbicides and other Pesticides Industries
- Synthetic Resin and plastics
- Man made Fibre (Cellulosic and non-cellulosic) Industry
- Manufacture and repair of electrical accumulators
- Glass and Ceramics
- Grinding or glazing of metals
- Manufacture, handling and processing of asbestos and its products
- Extraction of oils and fats from vegetable and animal sources
- Manufacture, handling and use of benzene and substances containing benzene
- Manufacturing processes and operations involving carbon disulphide
- Dyes and Dyestuff including their intermediates
- Highly flammable liquids and gases
