Announcement regarding acquisition of JSR Electronic Materials Korea

Corporate

JSR Corporation announced in the "JSR Electronic Materials Korea to be a JSR Wholly Owned Subsidiary” on October 13, 2022 that it planned to acquire additional shares of JSR Electronic Materials Korea Co., Ltd. ("JEMK") making it a wholly owned subsidiary of JSR Corporation. JEMK is the sales agent/distributor of JSR’s Electronic Materials business in Korea. The acquisition procedures were completed on January 10, 2023. By making JEMK a wholly owned subsidiary, JSR will further strengthen the global collaboration of its semiconductor materials business and build a system that enables solutions quickly and smoothly, which will lead to further customer and product portfolio expansion.

<Outline of JSR Electronic Materials Korea Co., Ltd.>

Company Name: JSR Electronic Materials Korea Co., Ltd.

Location: Samwhan HIPEX A-610, 240, Pangyoyeok-ro, Bundanggu, Seongnam-si, Gyeonggi-do 13493, Korea

Representative: Chang-Lyong Song and Tadahiro Suhara

Capital: WON100,000,000

Year of Establishment: 2014

Purpose of Enterprise: Sales agency of products such as semiconductor materials.