Design and manufacturing of automobile and motorcycle molds (punch molds, injection molds, compression molds) and fixtures (welding fixtures, inspection fixtures), manufacturing of cast and forged blanks for automobiles and motorcycles, manufacturing of precision bearings and various host-specific bearings, development and manufacturing of large-capacity optical and disk drives and their components, high-density digital Development and production of key parts for optical disc machines, manufacturing of civilian satellite parts, development and production of digital cameras and key parts, development and production of special materials for semiconductors and components; production of computers, communication equipment, electronic components and spare parts (except for restricted and prohibited categories) and sales of self-produced products. Wholesale business of chemical products (excluding hazardous chemicals); general cargo transportation by road. Licensed items: Production of Class II medical devices General items: Production of Class I medical devices