Corporate Data
| Corporate Name | SUMCO CORPORATION |
|---|---|
| Head Office | 1-2-1 Shibaura, Minato-ku, Tokyo 105-8634 |
| Established | July 30, 1999 |
| Main Business | Manufacturing and sale of silicon wafers for the semiconductor industry |
| Capital | 199.0 billion yen |
| President | Jiro Ryuta |
| Net Sales | Consolidated: 409.6 billion yen (fiscal year ended December 31, 2025) |
| Number of Employees | Consolidated: 9,714 (as of December 31, 2025) |
| Certifications | IATF16949, ISO9001, ISO14001, ISO45001 |
| Market of Listing | Tokyo Stock Exchange (Prime Market), code: 3436 |
| LEI (Legal Entity Identifier) | 353800SUSRUOM0V6KU92 |
Head Office
| Head Office |
1-2-1 Shibaura, Minato-ku, Tokyo 105-8634, Japan AccessTel: +81-3-5444-0808 Tel: +81-3-5444-0808 |
|---|
Sales Offices
| Tokyo Office |
1-2-1 Shibaura, Minato-ku, Tokyo 105-8634, Japan Tel: Domestic Sales +81-3-5444-3913 Tel: Domestic Sales +81-3-5444-3913 |
|---|---|
| Osaka Office |
5-5-15 Nishinakajima, Yodogawa-ku, Osaka 532-0011, Japan Tel: +81-6-6307-7640 Tel: +81-6-6307-7640 |
| Fukuoka Office |
3-1 Shimokawabatamachi, Hakata-ku, Fukuoka 812-0027, Japan Tel: +81-92-291-7767 Tel: +81-92-291-7767 |
Plants
| Kyushu Factory (Nagahama, Imari) |
826-1 Nagahama, Higashiyamashiro-cho, Imari-shi, Saga 849-4271, Japan Tel: +81-955-22-7015 Tel: +81-955-22-7015 |
|---|---|
| Kyushu Factory (Kubara, Imari) |
1-52 Kubara, Yamashiro-cho, Imari-shi, Saga 849-4256, Japan Tel: +81-955-20-2254 Tel: +81-955-20-2254 |
| Kyushu Factory (Saga) |
2201 Oaza Kamioda, Kohoku-machi, Kishima-gun, Saga 849-0597, Japan Tel: +81-952-71-6555 Tel: +81-952-71-6555 |
| Kyushu Factory (Nagasaki) |
1324-2 Masuragahara-machi, Omura-shi, Nagasaki 856-8555, Japan Tel: +81-957-52-0111 Tel: +81-957-52-0111 |
| Yonezawa Plant |
4-3146-12 Hachimanpara, Yonezawa-shi, Yamagata 992-1128, Japan Tel: +81-238-28-3131 Tel: +81-238-28-3131 |
| Chitose Plant |
1007-196 Izumisawa, Chitose-shi, Hokkaido 066-0051, Japan Tel: +81-123-28-1877 Tel: +81-123-28-1877 |
| JSQ Division |
5-14-3 Barajima, Akita-shi, Akita 010-0065, Japan Tel: +81-18-862-1692 Tel: +81-18-862-1692 |