1. Manufacture and sale of iron, steel, non-ferrous metals, alloys, and ceramics;
2. Manufacture and sale of cast iron products, cast and forged steel products, and cast and forged products of non-ferrous metal alloys;
3. Manufacture and sale of chemical products;
4. Supply of electricity;
5. Manufacture and sale of composite materials, metal powders, compacted products, various processed products, and by-products related to the preceding items;
6. Manufacture and sale of industrial, transportation, electrical and other machinery and equipment;
7. Manufacture and sale of electronic machines and electronic materials;
8. Engineering of and contracting for the construction of steelmaking plants, chemical plants, cement plants, and other kinds of plants;
9. Manufacture and sale of arms and their parts;
10. Mining;
11. Design, management, and contracting of civil engineering works, building works, and the construction of steel structures, bridges and other construction works;
12. Sale, brokering, leasing, management and security service of real estate; and planning, execution, and management related to local development;
13. Manufacture and sale of enzymes and microorganisms, related products, and production equipment;
14. Manufacture, sale, exportation, and importation of medical supplies and medical equipment;
15. Business related to data processing, telecommunication systems, and other information services;
16. Business related to education, medical service, sports, leisure, and other services;
17. Treatment and reclamation of industrial waste and other wastes;
18. Sale of technology related to all of the foregoing; and
19. All other business incidental or related to all of the foregoing.