Domestic
| Headquarters | 1-23-10 Midori, Sumida-ku, Tokyo See Google map TEL（+81）3-5600-5071 / FAX （+81）3-5600-5080 |
|---|---|
| Yokohama Branch | 13-2 Minami Karuizawa, Nishi-ku, Yokohama-shi, Kanagawa-ken See Google map TEL（+81）45-313-3415 / FAX（+81）45-313-3729 |
| Chiba Plant | 165-12 Saraki, Nagara-machi, Chosei-gun, Chiba-ken See Google map TEL（+81）475-35-3555 / FAX（+81）475-35-2282 ［Die Manufacturing Division］ TEL（+81）475-35-1551 / FAX（+81）475-35-1552 |
| Numazu Plant | 851 Ozuwa, Numazu-shi, Shizuoka-ken See Google map TEL（+81）55-927-3311 / FAX （+81）55-927-3312 |
| Tokai Plant | 939-1 Kozuwa, Numazu-shi, Shizuoka-ken See Google map TEL（+81）55-920-6380 / FAX（+81）55-926-5677 |
Overseas
| Hoyo Trading Hong Kong Co., Ltd. | Unit2001, 20/F., Ocean Building, 80 Shanghai Street, Kowloon, Hong Kong See Google map TEL（+852）2362-0081 / FAX (+852) 2362-0083 |
|---|---|
| Guangzhou Hoyo Precision Electronic Co., Ltd. | 100-1 Taian Road Xinqiao Shiji Town Panyu Ward GuangzhouCity, Guangdong Province, China See Google map TEL（+86）20-8455-8885 / FAX (+86)020-8455-2338 |
| Suzhou Hoyo Precision Electronic Co.,Ltd. |
158 Puxing Road Puzhuang Linhu Town Wuzhong Ward Suzhou City,Jiangsu Province, China See Google map TEL（+86）512-6653-1410 / FAX (+86)512-6653-1422 |
