■ Design, manufacturing, procurement, sales, installation, dismantling, maintenance, inspection, repair, and operation of various cranes, transport machinery, manufacturing machinery for steel, chemicals, power, automobiles, etc., ropeway machinery, automatic multi-story warehouse systems, shot blasting machines, and other general industrial machinery and equipment. ■ Electrical and telecommunications construction business. ■ Business related to the development, design, manufacturing, construction, and sales of solar power generation, other power generation and power supply equipment, and energy-saving equipment. ■ Design, manufacturing, sales, installation, dismantling, maintenance, inspection, and repair of steel structures. ■ Design, manufacturing, sales, installation, and dismantling of marine and land structures such as floating piers, jetties, and aquaculture rafts. ■ Measurement equipment construction business. ■ Design, manufacturing, processing, sales, installation, dismantling, maintenance, inspection, repair, and operation of various electric motors, devices incorporating instrumentation, diagnostic equipment for various facilities, and other electrical machinery and electrical control devices. ■ Design, manufacturing, processing, sales, and repair installation business of air conditioning equipment, etc. ■ Business related to the development, planning, design, manufacturing, sales, and services of comprehensive computer systems and information communication systems and equipment. ■ Painting and waterproofing construction and sales of paints, design and construction of civil engineering, architecture, dismantling, piping, thermal insulation, and water supply facilities.