Central Glass at a Glance


Central Glass is engaged in a wide range of business activities in seven areas.

  • 1936 Chemicals Business
  • 1953 Chemicals Business
  • 1958 Architectural Glass Business
  • 1964 Automotive Glass Business
  • 1971 Glass Fiber Business
  • 1979 Fine Chemicals Business
  • 1983 Glass for Electronic Materials Business

1936: Our Start in the Chemicals Business

The origins of our Company are found in the chemicals business. We started with the production of soda products including soda ash, the raw material for glass products, soaps, and detergents, as well as the production of inorganic and organic chemicals that are the fundamental materials for many industrial products. These materials are used as ingredients in many industrial fields as basic industrial products.

1953: Start of Our Fertilizer Business

Ammonium chloride, which is produced along with soda ash, is one of the three major ingredients of fertilizer. It is used in chemical fertilizers containing nitrogen (N).

Central Glass's fertilizer business began in 1953 when the Company converted some of its soda ash production facilities over to the production of ammonium chloride soda. This marked the start of the production of both soda ash and ammonium chloride used for fertilizers.

Thereafter, Central Glass has made substantial contributions to Japanese agriculture by expanding its product line to include the production of enriched fertilizers based on ammonium chloride (NPK compound fertilizers) along with NK compound fertilizers. We have also developed coated fertilizers that can release the quantities of fertilizers needed when they are needed.

1958: Our Move into the Glass Business (Architectural and Automotive)

As a manufacturer of soda ash, in 1958 Central Glass moved into the production of sheetglass using soda ash. We built an integrated process that goes all the way from raw material to flat glass production. We now produce architectural glass that meets many different requirements including flat glass produced at Duplex facilities that are unique in the industry. With our move into the production of architectural glass, we were able to develop the glass-making and production technologies demanded for the manufacture of precision automotive glass. Central Glass now supplies many different types of high-quality automotive glass that offer safety, comfort, and superior design characteristics.

1971: Start of Glass Fiber Production

Central Glass drew on its kiln operating technology to start its glass fiber business. We have developed unique glass fibers with excellent characteristics for many different fields, including the automotive, IT, housing, and environmental industries. We offer products that meet the different needs of manufacturers around the world.

1979: Start of Our Fine Chemicals Business

Phosphate rock, which is the raw material for phosphoric acid which is one of the three main fertilizers, contains 2 to 3% fluorine. Fluorine fixation and recovery in the process of making phosphoric acid marked our initial involvement in fluorine. In 1979, we began research centered on fluorination technology. We now offer a range of fine chemicals with a primary focus on the electronics, pharmaceutical, and agrochemical fields.

1983: Development of Glass for Electronic Materials

With the commercialization and development of flat panel displays, Central Glass began research into the field with a view to advancing into glass for electronic materials. We currently provide glass materials in a wide variety of forms, including thin sheet glass used mainly for displays in the IT and electronics industries, coated glass, glass frit (powdered glass), glass paste, and other products.

  • Beginnings 1936
  • Businesses 7 fields
  • Global 22 group companies
  • Strengths 80 years
  • Contributing to Society
  • The Future ¥18 billion

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