| 会社名 | Group | 親会社 | 子会社 | 得意先 | 仕入先 | 業務提携 | 銀行等 | 株主等 |
|---|---|---|---|---|---|---|---|---|
| Hokutoh Giken Kogyo Corporation | ||||||||
| Hotel Beniya Co, Ltd. | ||||||||
|
|
||||||||
| KITZ Engineering Service Corporation | ||||||||
| KITZ Metal Works Corporation | ||||||||
| KITZ Micro Filter Corporation | ||||||||
|
|
||||||||
| Metalúrgica Golden Art’s Ltda. | ||||||||
|
|
||||||||
| Shimizu Alloy Mfg. Co., Ltd. | ||||||||
| KITZ Corporation of Europe, S.A. |
Kitazawa Mfg. Works was established. The Nagasaka Plant was constructed in Nagasaka-cho, Yamanashi, and the Company started manufacturing and selling bronze valves.
The Nagasaka Plant received JIS certification for bronze valves.
Toyo Metals Co., Ltd., was established and started manufacturing brass rods.
KITZ started using a high-performance automated production system using the most advanced machinery, including automated processing and molding machines from Europe and North America.
Company name changed to Kitazawa Valve Co., Ltd.KITZ was the first in Japan to start using a brass hot forging press; started manufacturing and selling brass forged valves.
KITZ became a registered trademark.
Started manufacturing and selling ductile cast iron valves and stainless steel valves.
Started manufacturing and selling butterfly valves.
Started manufacturing and selling cast gray iron valves.
Started operations at stainless steel valve casting facility and machining facility at the Nagasaka Plant.
Started operations at the Ina Plant.
Started manufacturing and selling cast steel valves.
Changed Japanese-character company name (still Kitazawa Valve Co., Ltd., in English).
Established KITZ (Thailand) Ltd., in Samutprakarn, Thailand.
Established KITZ Valve & Actuation (Thailand) Co., Ltd. in Thailand.
KITZ CORPORATION announced that its CHRYSANTHEMUM HANDLE® has received both the 2026 Long Life Design Award and the 2026 Good Design Award from the Japan Institute of Design Promotion. The handle, developed in 1978 with the Yanagi Industrial Design Institute and inspired by chrysanthemum petals, offers superior comfort, usability, and safety for valve operators. Global sales of the product have exceeded 100 million units.
KITZ Corporation announced that its Vietnamese subsidiary, KITZ Corporation of Vietnam Co., Ltd., has been certified for ISO 14001 (Environmental Management System) and ISO 45001 (Occupational Health and Safety Management System). The company reaffirmed its commitment to environmental conservation and occupational health and safety across its global operations. It plans to further strengthen its environmental and occupational health and safety management systems and continue improving safe and comfortable working environments.
KITZ Group company MGA, headquartered in Rio Grande do Sul, Brazil, received the Prêmio Expressão de Ecologia 2026 in the Environmental Management category. The award is one of Brazil's most prestigious environmental honors and is recognized by the Ministry of the Environment. MGA was established in 1993.
KITZ announced that its group company, KITZ Metal Works Corporation, has signed a technology license agreement with Mitsubishi Materials covering copper-bar and copper-alloy-bar technologies, including ECOBRASS®. Under the agreement, KITZ Metal Works will receive manufacturing and quality-control standards and related technical documentation developed by Mitsubishi Materials.
KITZ (Thailand) Ltd. will be closed for its summer holiday from August 11 to August 16, 2026. Requests received during this period will be answered after August 17, 2026. The company apologizes for any inconvenience.
KITZ and its Chinese affiliate filed a complaint with the Shanghai Municipal Public Security Bureau over counterfeit KITZ valves, leading to a criminal investigation and a judgment by the Shanghai Fengxian District People’s Court. After enforcement actions concluded, KITZ thanked the authorities and presented an appreciation plaque.
株式会社キッツは、株式会社VTEXの統合を受け、2026年6月4日にVTEX東海工場で「KITZグループビジョン共有会」を開催しました。半導体市場におけるグループのビジョンと今後の取り組みを共有し、VTEXの全従業員がウェブ会議で参加しました。
Yui Susaki, representing KITZ (Thailand) Ltd., won gold in the women’s 50 kg category at the All‑Japan Invitational Wrestling Championships (Meiji Cup) held from May 21 to 24, 2026. The event also served as a qualifier for the 20th Asian Games in Nagoya and the 2026 Senior World Wrestling Championships in Kazakhstan, earning Susaki the right to represent Japan at those competitions.
KITZ Corporation has completed component‑level performance verification of five valve types developed for hydrogen‑powered aircraft, covering three different design concepts. The valves demonstrated stable sealing under cryogenic conditions and passed the stage‑gate review under the GI Fund project led by NEDO.
KITZ Corporation will be closed for spring holiday on April 29 and from May 2 to May 6. Inquiries received during this period will be answered after May 7. The company apologizes for any inconvenience.