Note: This document has been translated from a part of the Japanese original for reference purposes only. In
the event of any discrepancy between this translated document and the Japanese original, the original shallprevail. The Company assumes no responsibility for this translation or for direct, indirect or any other formsof damages arising from the translation.
(Securities Code 1786)
June 4, 2021
To Shareholders with Voting Rights:
Tatsuya Ohno
Representative Director and President
Oriental Shiraishi Corporation
6-52 5chome, Toyosu, Kotouku, TokyoNOTICE OFTHE 70TH ANNUAL GENERAL MEETING OF SHAREHOLDERS
We would like to express our appreciation to you for your continued support and patronage.
We are pleased to inform you of the 70th Annual General Meeting of Shareholders (the “Meeting”) ofOriental Shiraishi Corporation (the “Company,” together with its subsidiaries, the “Group”). The Meeting will
be held for the purposes as described below.
In recent months, various requests for voluntary self-restraint to prevent the spread of coronavirus disease(COVID-19) have been issued by the national and prefectural governments, including the state of emergency
declared by the Government of Japan and emergency response measures by the Tokyo MetropolitanGovernment, and citizens are requested to stay alert even after these declaration and response measures arelifted. In response to these conditions and after careful consideration, the Company has decided to hold theMeeting upon taking appropriate preventive measures against infections.
In light of the ongoing risks of COVID-19, we ask our shareholders to refrain from attending this year’s
Meeting in person in any case possible regardless of their health condition, and exercise voting rights inadvance via postal mail or the Internet, etc., to prevent the spread of the virus.
Voting rights can be exercised by either of the methods below, so please review the attached Reference
Documents for the General Meeting of Shareholders and exercise your voting rights by 5:30 p.m. Japan timeon Wednesday, June 23, 2021.
Exercise of voting rights via postal mailPlease indicate your approval or disapproval of the proposals on the enclosed voting rights exercise form andreturn it so that it is received by the deadline above.
Exercise of voting rights via the Internet
Please review the guidance on the procedure for exercising voting rights via electromagnetic method (theInternet) below (translation omitted), access the website for exercising voting rights designated by theCompany (https://evote.tr.mufg.jp/), use the login ID and temporary password printed on the enclosed voting
rights exercise form, and follow the onscreen instructions to enter your approval or disapproval of theproposals by the deadline above.
1. Date and Time:Thursday, June 24, 2021 at 10:00 a.m. Japan time
(Reception will start at 9:15 a.m.)

2. Place:

The Hall at Koto-ku Bunka Center11-3 4chome, Toyo, Kotouku, Tokyo, JapanThe time and the venue above may have to be changed, depending on thepandemic status of COVID-19. Any changes will be posted on our website(https://www.orsc.co.jp/), so please be sure to check our website prior to coming
to the venue, even if you have decided to attend the Meeting.

3. Meeting Agenda:
Matters to be reported: 1. The Business Report, Consolidated Financial Statements for the Company’s
70th Fiscal Year (April 1, 2020 – March 31, 2021) and results of audits ofthe Consolidated Financial Statements by the Accounting Auditor and theAudit and Supervisory Committee-1-2. Non-consolidated Financial Statements for the Company’s 70th Fiscal Year

(April 1, 2020 – March 31, 2021)
Proposals to be resolved:
Appropriation of Surplus
Proposal :4. Matters Determined upon Convocation

Of the documents to be attached to this Notice, the following are posted on the Company’s website(https://www.orsc.co.jp/) pursuant to laws and regulations and Article 17 of the Company’s Articles ofIncorporation, and therefore are not included in the attachments.
1)
Notes to Consolidated Financial Statements2)
Notes to Non-consolidated Financial Statements
Accordingly, the attachments to this Notice comprise part of the consolidated and non-consolidated
financial statements audited by the Accounting Auditors and the Audit and Supervisory Committee in
preparing their respective audit reports.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~■ When attending the Meeting, please hand in the enclosed voting rights exercise form at the reception andbring this Notice with you to save resources.
■ Any revisions to the Business Report, Consolidated and Non-consolidated Financial Statements, or theReference Documents for the General Meeting of Shareholders will be posted on the Company’s website(https://www.orsc.co.jp/).
■ No souvenirs will be provided to shareholders attending the Meeting. Your understanding would be muchappreciated.
<Notice>
Matters to be reported at the Meeting regarding the Merger
The Company conducted an absorption-type merger with the Company as the surviving company andOSJB Holdings Corporation as the disappearing company on April 1, 2021.
Although the matters to be reported under the Companies Act at the Meeting is a report on the Company’s
70th Fiscal Year (fiscal year ended March 31, 2021), a report on OSJB Holdings Corporation’s 7th Fiscal
Year (fiscal year ended March 31, 2021) is also provided to ensure continuity in information disclosure toshareholders. The Business Report, Consolidated Financial Statements and Non-consolidated Financial
Statements for OSJB Holdings Corporation’s 7th Fiscal Year are posted on the Company’s website(https://www.orsc.co.jp/) as reference. Shareholders are requested to see these references (Japanese only).

* For the purpose of infection control and preventive measure against the spread of COVID-19, theCompany’s staff may attend to the Meeting wearing a face mask. Shareholders who consider attending theMeeting in person are requested to take preventive measures as well, such as wearing a face mask, whilestaying alert to the pandemic status as well as your own health conditions as of the day of the Meeting.

-2-Reference Documents for the General Meeting of Shareholders
Proposals and References
Proposal:Appropriation of Surplus

Year-end dividends
The Company considers stable returns of profits to shareholders one of its most important management
priorities, and makes it its basic policy to continue a stable distribution of dividends from profits.
The Company conducted an absorption-type merger with OSJB Holdings Corporation on April 1, 2021,
and has succeeded obligations for payment of the dividends of surplus resolved at the extraordinary general
meeting of shareholders held for said company on December 23, 2020.
As a result, the Company proposes the payment of dividends of 8 yen per share to shareholders ofcommon shares or registered pledgees of shares as stated or recorded on the final shareholder register ofOSJB Holding Corporation as of March 31, 2021.
(1) Type of dividend property
Cash(2) Allotment of dividend property to shareholders and its amount
8 yen per share of the Company’s common stock
Total dividend amount of 943,347,488 yen(3) Effective date of the dividend of surplus
June 25, 2021

-3-END