1. Civil engineering, architecture and related general construction work 2. Real estate agency 3. Recycling and processing of construction and industrial waste 4. Cleaning and maintenance of plant and work sites 5. Planning, design, management and supervision of construction 6. Manufacture and sale of ready-mixed concrete 7. Manufacture and sale of concrete products for construction use 8. Manufacture and sale of asphalt/concrete products 9. Sale, lease and management of construction machinery 10. Sale and lease of office equipment 11. Warehouse rental 12. Design and construction of sign and billboards 13. Collection and transport of industrial and general waste 14. Trucking business 15. Transport of vehicles 16. Investment 17. Survey, analysis and implementation of soil remediation through biotechnology 18. Labor dispatch 19. Service business by use of transportation including vessels, passenger vehicles and aircraft and use of construction machinery 20. Sale of construction raw material 21. Nonlife and life insurance agent 22. Travel Agency under The Travel Agency Law 23. All related affairs stated above