Expanding into Semiconductors and Wearables through the Acquisition of KST World
First written in FY2019. 8 of 14 entries say "Advanced", first in FY2020-Q1. Latest entry: FY2026.
No other company in this theme has enough history to compare yet.
- FY2026AdvancedAnnual report
「At セーレンアドバンストマテリアルズ㈱, sales of silicon-wafer oxide-film processing, both thick-film and thin-film, remained solid, mainly overseas.」
At SEIREN Advanced Materials, which succeeded ケイ・エス・ティ・ワールド, sales of silicon-wafer oxide-film processing for overseas customers progressed steadily. - FY2026-H1AdvancedAnnual report
「In addition, at SEIREN Advanced Materials㈱ (formerly SEIREN KST㈱; company name changed effective 1 November 2025), oxide-film processing for silicon wafers for overseas customers and sales of bare wafers progressed steadily.」
SEIREN KST changed its name to SEIREN Advanced Materials, and oxide-film processing for silicon wafers for overseas customers and bare-wafer sales progressed steadily. - FY2025AdvancedAnnual report
「In addition, at KB SEIREN㈱, demand for the engineering-plastic fiber Zexion remained sluggish, while demand for the HDD wiping cloth Zavina for generative-AI data centers recovered. At SEIREN KST㈱, oxide-film processing for silicon wafers and SOI wafers progressed steadily.」
The recovery in demand for Zavina for generative-AI data centers, in addition to SEIREN KST’s oxide-film processing and SOI wafers, was cited as progress in the electronic-materials field. - FY2025-H1AdvancedAnnual report
「At SEIREN KST㈱, silicon-wafer thick-film processing progressed steadily.」
At SEIREN KST, silicon-wafer thick-film processing progressed steadily. - FY2024Impact of inventory adjustments on the KST and electronic-materials businessesAnnual report
「In addition, SEIREN KST㈱ was affected by inventory adjustments by customers, while orders for machinery for the textile industry at Suzhou Shilian Electronics Co., Ltd. declined due to deteriorating market conditions in China. As a result, the Electronics business as a whole reported lower revenue and lower earnings.」
SEIREN KST was affected by inventory adjustments by customers, and orders for textile-industry machinery in Suzhou also declined, resulting in lower revenue and lower earnings for the Electronics business as a whole. - FY2024-Q2Sluggish growth in KST-related productsAnnual report
「At KB SEIREN㈱, Zavina for data centers and engineering-plastic fibers for cables remained sluggish.」
In the electronic-materials field related to KST and KB SEIREN, Zavina for data centers and engineering-plastic fibers for cables remained sluggish. - FY2023-Q3AdvancedAnnual report
「At SEIREN KST㈱, business involving SOI wafers for various sensors and oxide-film processing for electronic-device development and product testing performed well.」
At SEIREN KST, the businesses involving SOI wafers for sensors and oxide-film processing performed well. - FY2021RestatedAnnual report
「Development and market cultivation of materials for 5G and optical-communications devices, and optical engines for ultracompact displays, at SEIREN KST㈱.」
SEIREN KST continues to develop and cultivate markets for materials for 5G and optical-communications devices, and optical engines for ultracompact displays. - FY2020Specification of target development areasAnnual report
「5) Development and market cultivation of materials for 5G and optical-communications devices, and optical engines for ultracompact displays, at ケイ・エス・ティ・ワールド㈱.」
For ケイ・エス・ティ・ワールド㈱, the company specified target areas including materials for 5G and optical-communications devices and optical engines for ultracompact displays, in addition to its semiconductor- and wafer-related operations. - FY2020-Q2RestatedAnnual report
「In addition, the results of ケイ・エス・ティ・ワールド㈱, which became a consolidated subsidiary at the end of the previous consolidated fiscal year, have newly been included in the Electronics segment.」
The company continues to incorporate the results of its subsidiary ケイ・エス・ティ・ワールド㈱ into the Electronics segment. - FY2020-Q1AdvancedAnnual report
「In addition, the results of ケイ・エス・ティ・ワールド㈱, which became a consolidated subsidiary at the end of the previous consolidated fiscal year, have newly been included in the Electronics segment.」
The results of ケイ・エス・ティ・ワールド㈱, which became a subsidiary at the end of the previous fiscal year, were included in the Electronics business results from the first quarter. - FY2019First statedAnnual report
「The Company determined that acquiring the shares would enable KST World’s potential for business growth to be realized rapidly by leveraging the Group’s management resources. It also determined that combining the proprietary technological seeds of the Group and KST World could lead to the creation of new business areas for the future, and therefore proceeded with the share acquisition. Voting rights acquired: 54.6%.」
The Company made KST World, a manufacturer and distributor of silicon wafer film processing and SOI wafers, a subsidiary with a 54.6% voting interest as of 31 March 2019. The acquisition aims to combine proprietary technologies and create new business areas, including wearables.