Welcome Note

Welcome to SEIREN KST Corp.

SEIREN KST’s “Thick Thermal Oxide Process Technology” is hoping to contribute worldwide society through OPTO and MEMS Products.

Our company established in 1998 as KST World Corporation to provide wide range of silicon wafer processing service to customer around the world.
Currently, our thick thermal oxide film technology is shipped to worldwide customers as the most important materials for expanding market of optical communication components such as 5G and DATA Center. Also, the technology is applied in to SOI wafer production to minimize lead time and improve quality for MEMS and power device from pilot development to mass production.
Now, KST as a part of SEIREN group to grow rapidly, all of our employees and directors are making their best effort to satisfy our customers. We look forward to your continuous support.
President / CEO Yojiro Kamei