Kamisima Chemical Industries Co., Ltd.

Founded as Kamijima Sulfuric Acid Plant in Kamijima, Kasaoka City, Okayama Prefecture, and changed the company name to Kamijima Artificial Fertilizer Co., Ltd., starting as a chemical fertilizer company.

Established Kamisima Sulfuric Acid Plant in Kamisima, Okayama Prefecture (later Kamisima Artificial Fertilizer Co., Ltd.)

Established as Kamijima Chemical Industry Co., Ltd. through merger with the former Kamijima Chemical Industry Co., Ltd., and continues to this day.

Merged Kamisima Artificial Fertilizer Co., Ltd. and (former) Kamisima Chemical Industries Co., Ltd.: Established Kamisima Chemical Industries Co., Ltd. Capital: 1.5 million yen

Started manufacturing magnesium carbonate

Started manufacturing magnesium oxide

Started manufacturing products utilizing calcium silicate

Started manufacturing calcium carbonate

Started manufacturing non-combustible building materials calcium silicate laminated boards

Started manufacturing non-combustible building materials calcium silicate exterior wall materials

Capital increased to 360 million yen

Started manufacturing high-purity magnesium oxide

Started manufacturing calcium silicate exterior materials using new extrusion method

Started manufacturing non-combustible fixtures (exterior wall construction materials)

Succeeded in synthesizing YAG ceramics through joint research with the Institute of Inorganic Materials, Science and Technology Agency, and began commercialization

Listed on the Second Section of the Osaka Securities Exchange. Capital increased to 1.32 billion yen

Started manufacturing hard calcium silicate decorative boards with electronic coating (EB board)

Received the "Photonics Circle of Excellence Award" from Laurin Publishing Company, Inc.

Obtained ISO9001 certification

The American Ceramics Society received the "Corporate Technical Achievement Award"

Awarded the "Ashihara Science Award" by the Kagawa Industry Support Foundation

Construction of exterior material precutting factory

Construction of non-halogen flame retardant manufacturing equipment

ISO 14001 certification

Changed market to Tokyo Stock Exchange Second Section

Received business transfer from Showa Denko Building Materials Co., Ltd. and started Lambda business

Received Good Design Award for 2015: (Eaves material "Laforet Timber", Custom-made material "Laforet Grace")

Received a letter of appreciation from JAXA (contribution of cryogenic materials GLF to X-ray astronomy satellite "Hitomi")

Started manufacturing synthetic magnesite (MagSaro), synthetic bauxite (Alcub)

Completion of 100th Anniversary Technical Building

Received Good Design Award for 2018 (High-performance soundproof floor for wooden architecture)

Received Good Design Award for 2020 (High-design eaves ceiling material "Altezart" and installation method "Atrafit" with dedicated fittings)

Changed market to Tokyo Stock Exchange Standard Market

Received a letter of appreciation from JAXA (contribution of cryogenic materials GLF to X-ray spectroscopy satellite "XRISM")

Selected for Good Design Best 100 for 2024 (KONOSHIMA CO2 RECYCLE PRODUCTION SYSTEM)