Kisuma Chemicals BV (KCBV) is through the holding company Kisuma Euro BV a wholly owned subsidiary of Kyowa Chemical Industry Co., Ltd., Kagawa Japan (Kyowa).

Kyowa is renowned world wide for their synthetic hydrotalcites and their flame retardant grade magnesium hydroxide.

Starting with the production of pharmaceutical grade products (a.o. antacids) in the late forties, nowadays Kyowa/KCBV serve mainly industrial markets all over the world.  

• 1947 Kyowa Chemical was founded by Yoshio Matsushima to produce and market magnesium oxide for the pharmaceutical industry.
• 1950 Production of magnesium hydroxide and magnesium oxide started.
• 1952 Kyowa Chemical Industry Co., Ltd. was established.
• 1956 Yashima plant and Tokyo office opened
• 1957 Production of dried alumium hydroxide gel started
• 1960 Sakaide plant opened.
• 1966 Research and Development Department opened in Takamatsu.
• 1970 Developed the world's first industrial synthesis of hydrotalcite.
• 1977 Production of DHT-4A, a halogen scavenger for polyolefin and other plastics, started.
• 1981 Production of Alcamizer, a heat stabilizer for PVC , started.
• 1982 Production of Kisuma 5, an inorganic flame retardant, started.
• 1985 Ryohei Matsushima was inaugurated as president.
• 1992 New Research and Development Department building opened in Sakaide.
• 1993 Keizo Matsushima was inaugurated as President.
• 1997 Kisuma Chemicals BV in The Netherlands established 
• 1998 New head office opend at 17 August in Sakaide
• 1999 Kisuma Chemicals BV started to produce Alcamizer, DHT and KISUMA 5 in the Netherlands
• 2005 Pharmaceuticals Division established 
• 2007 Production facilities of Pharmaceuticals Division opened.

Kisuma Chemicals BV (KCBV) is responsible for the manufacturing, marketing and trading of special magnesium compounds worldwide, with the exception of Asia / Pacific Rim. These non-toxic products find their way mainly to the engineering plastics and polymer processing industry. 

For these markets, our top performance products are aimed to offer environmentally friendly solutions at affordable prices. They are generally recognized as the best of their kind, available in the market place, and we take great pride in keeping up this quality image of both our products and our Company.

Their main applications include:

• Heat stabilization of PVC products, as an alternative for lead containing compounds.
• Flame retardancy of e.g. wire and cables in automotive and ICT applications, as an alternative for bromine or phosphorous based compounds.
• Halogen scavenging in polypropylene and other bulk polymers.