Manufacturing and sales of industrial gas
Manufacturing and sales of industrial equipment
Sales of metal parts and materials
Sales of petroleum products
Sales of industrial chemicals
Sales of toxic and hazardous substances
Import and export of the above six items
Real estate leasing
Contracting for electrical work, piping work, and machinery and equipment installation work
Worker dispatch business
Warehousing business
Antique dealer based on the Antique Dealings Act
Telecommunications business based on the Telecommunications Act
All business incidental or related to the above items
