(As of June 2010)
Yamaichi Electronics Co., Ltd.
| Business institution | Accredited by | Registration |
|---|---|---|
| Head office | RCJ | Nov. 15, 1998 |
| Sakura factory | RCJ | Nov. 15, 1998 |
| Osaka Branch Office | RCJ | Nov. 2, 2000 |
| Kumamoto Branch Office | RCJ | Nov. 2, 2000 |
| Suwa Branch Office | RCJ | Dec. 9, 2008 |
| Okayama Branch Office | RCJ | Dec. 9, 2008 |
Group company
| Company | Accredited by | Registration |
|---|---|---|
| Matty Co.,Ltd. | RCJ | Nov. 2, 2000 |
| Koshin Kogaku Co., Ltd. Head Office & Togawa Plant |
RCJ | May 27, 2004 |
Oversea Factory
| Company | Accredited by | Registration |
|---|---|---|
| Yamaichi Electronics Shenzhen Ltd. | CNAB | Dec. 31, 2004 |
| Pricon Microelectronics,Inc | TUV | Feb. 17, 2005 |
| Asia Yamaichi Electronics Inc. | SBCR | Dec. 15, 2006 |