(Progress of disclosure items) Announcement regarding acquisition of Inpria Corporation (and making it a subsidiary)

Translation

Notice: This document is an excerpt translation of the original Japanese document and is only for reference purposes. In the event of any discrepancy between this translated document and the original Japanese document, the latter shall prevail.

		October 29, 2021
To whom it may concern,
	Company name:	JSR Corporation
	Representative:	Eric Johnson, Representative Director, CEO
		(Code #4185, Tokyo Stock Exchange)
	Inquiries to:	Yoshiko Takeda, General Manager
		Corporate Communications Dept.
		TEL: [phone] (Japan)
		[phone] (from abroad)
(Progress of disclosure items)	Announcement regarding acquisition of Inpria Corporation
	(and making it a subsidiary)

JSR Corporation announced in the " Announcement regarding acquisition of Inpria Corporation (and making it a subsidiary)" on September 17, 2021 that it planned to acquire additional shares of Inpria Corporation, a U.S. manufacturer of metal-based photoresists for Extreme Ultraviolet (EUV) lithography, making it a wholly owned subsidiary of JSR Corporation. The acquisition procedures was completed on October 29, 2021 (U.S. time).

1. Outline of the Company

1	Company Name	Inpria Corporation
2	Address	1100 NE Circle Blvd., Suite 360 Corvallis, Oregon 97330
3	Representative	Andrew Grenville, CEO
4	Businesses	Development and manufacturing of metal based EUV resists
5	Capital	74,224 thousand U.S. dollars（As of June 30, 2021）
6	Date of Establishment	2007
	Major Shareholders and their
7	ownership percentages	JSR Corporation 21.3%
	(As of July 12, 2021)

2. Date of acquisition October 29, 2021

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1. Acquisition Price About US$421 million
2. Outlook for the future

We are currently examining the impact of this acquisition on our business performance. If any event that should be disclosed in the future arises, we will announce it promptly.

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