
Sumco Corporation
SUMCF | OTC
$14.59
-$1.66 (-10.22%)
At close: Oct 30, 2026, 3:11 PM ET
$14.59
$0.00 (0.00%)
After-hours:
Oct 30, 2026, 4:00 PM ET
Company Profile
Sumco Corporation, along with its various subsidiaries, is a prominent manufacturer and seller of silicon wafers, serving the semiconductor industry across numerous international markets, prominently in Japan, the United States, China, Taiwan, and Korea. The company's product line includes monocrystalline ingots, as well as diverse wafer types such as polished, annealed, epitaxial, junction-isolated, silicon-on-insulator (SOI), and reprocessed polished wafers. Established in 1999, the enterprise, originally known as Sumitomo Mitsubishi Silicon Corp., officially changed its name to Sumco Corporation in August 2005 and is headquartered in Tokyo, Japan.
Key Executives
| Name | Position |
|---|---|
| Shinichi Kubozoe | Chief Financial Officer, Executive Vice President & Representative Director |
| Fumihiko Yoshida | Managing Executive Officer, Deputy GM of Production Engineering Headquarters & 1st Factory Manager |
| Ginji Yada | Managing Executive Officer, GM of Sales Headquarters & Director |
| Ito Hiroshi | GM of Accounting Department, Executive Officer & Director |
| Jiro Ryuta | President & Chairman of the Board of Director |
| Kazuhito Matsukawa | Managing Executive Officer & Director of Marketing Technology |
| Kouki Kato | Managing Executive Officer |
| Masayasu Hara | Managing Executive Officer, Kuhara 1st Factory Manager & Deputy GM of Production Engineering |
| Naruya Hirota | VP, GM of Construction Division, Epi-Technology & Director |
| Takeo Katoh | Sr. Managing Exec. Off. of AI Promotion Headquarters, General Affairs, HR & Labor Policy & Director |
Sumco Corporation

| Country | Japan |
| IPO Date | Jun 25, 2008 |
| Industry | Semiconductors |
| Sector | Technology |
| Employees | 9,714 |
| CEO | Jiro Ryuta |
Stock Details
| Ticker Symbol | SUMCF |
| Exchange | OTC |
| Fiscal Year | n/a |
| Reporting Currency | USD |
| CIK Code | n/a |
| CUSIP Number | n/a |
| ISIN Number | JP3322930003 |
| SIC Code | n/a |
Add to Watchlist
Select watchlists to add or remove SUMCF