Extraordinary Report: June 29

Cover Sheet

Type of Document

Extraordinary Report

Filing Authority

Director of Kanto Local Finance Bureau

Filing Date

June 29, 2023

Company Name

Sumitomo Metal Mining Co., Ltd.

Name and Title of Representative

Akira Nozaki, President and Representative Director

Location of Head Office

11-3, Shimbashi 5-chome,Minato-ku, Tokyo 105-8716, Japan

Contact Telephone Number

03-3436-7704

Name of Contact

Hideki Niwa, General Manager of Legal Dept.

Closest Place of Contact

11-3, Shimbashi 5-chome,Minato-ku, Tokyo 105-8716, Japan

Telephone Number

03-3436-7704

Name of Contact

Hideki Niwa, General Manager of Legal Dept. Places of Public Inspection

Tokyo Stock Exchange Group, Inc.

2-1,Nihombashi-Kabutocho,Chuo-ku, Tokyo 103-8224, Japan Sumitomo Metal Mining Co., Ltd., Osaka Branch

5-33, Kitahama 4-chome,Chuo-ku, Osaka City, Osaka 541-0041, Japan

1 Reason for Filing

At its 98th Ordinary General Shareholders Meeting conducted on June 23, 2023, Sumitomo Metal Mining Co., Ltd. passed a number of resolutions. Accordingly, the Company files this Extraordinary Report in compliance with Article 24-5, Paragraph 4 of the Financial Instruments and Exchange Act and Article 19, Paragraph 2, Item 9-2 of the Cabinet Office Ordinance on Disclosure of Corporate Information.

2 Report

1. Date of General Shareholders Meeting June 23, 2023
2. Description of resolutions passed Resolution No.1: Appropriation of surplus
   1. Matters pertaining to year-end dividend

1. Type of dividend property Cash
2. Matters pertaining to allotment of dividend property to shareholders and total amount thereof
   115 yen per share of the Company's common stock

Total amount:

31,597,974,310 yen

1. Date on which distribution of surplus took effect June 26, 2023

2. Matters pertaining to appropriation of other surplus

1. The item of surplus showing a decrease, and the amount thereof

Retained earnings brought forward:

40,000,000,000 yen

1. The item of surplus showing an increase, and the amount thereof

General reserve:

40,000,000,000 yen

Resolution No.2: Election of Eight (8) Directors

The following eight individuals were elected to serve as directors: Yoshiaki Nakazato, Akira Nozaki, Toru Higo, Nobuhiro Matsumoto, Masaru Takebayashi, Taeko Ishii, Manabu Kinoshita and Kanji Nishiura.

Resolution No.3: Election of One (1) substitute Audit & Supervisory Board member

Kazuhiro Mishina was elected to serve as a substitute Audit & Supervisory Board member.

Resolution No.4: Payment of bonuses to Directors

A total of 85 million yen is to be paid as bonuses to Four (4) Directors, excluding a Chairman and Director and Outside Directors among the Eight (8) Directors who were in office as of the end of the 98th business year (year ended March 31, 2023).

1. Number of voting rights for declaration of intent to express approval, disapproval or abstention pertaining to proposals at the General Shareholders Meeting; conditions required for passage of proposed matters; and voting results

Proposal	For	Against	Abstention	Requisites	Approval	Result
	(votes)	(votes)	(votes)	for passage	rate (%)
No.1	2,255,367	43,304	413	Notes 1	98.01	Passed
No.2
Yoshiaki	2,150,694	139,342	9,051		93.46	Passed
Nakazato
Akira	2,117,162	172,465	9,462		92.01	Passed
Nozaki
Toru	2,206,330	83,303	9,462		95.88	Passed
Higo
Nobuhiro	2,214,345	75,288	9,462		96.23	Passed
Matsumoto	Notes 2
Masaru	2,213,246	76,387	9,462		96.18	Passed
Takebayashi
Taeko	2,285,738	13,358	2		99.33	Passed
Ishii
Manabu	2,137,640	161,452	2		92.90	Passed
Kinoshita
Kanji	2,284,487	14,199	413		99.28	Passed
Nishiura
No.3
Kazuhiro	2,295,023	3,487	574	Notes 2	99.74	Passed
Mishina
No.4	2,276,762	21,024	1,331	Notes 1	98.94	Passed

(Notes)

1. Required a majority vote of approval, in terms of number of voting rights, by the shareholders in attendance.
2. Required attendance by shareholders representing more than one-third of all eligible voting rights and a majority vote of approval by those shareholders in attendance.

1. Reason for not including part of the number of voting rights of shareholders in attendance at the General Shareholders Meeting into the number of voting rights
   Because the total numbers for which approval or disapproval of each proposal by those who exercised their voting rights prior to the Meeting or by part of those in attendance excluding those who were not in the Meeting at the time of voting (they must be exercised by a proxy of shareholder who has submitted the power of attorney or confirmed by a notice of acting representative submitted from an institutional shareholder) satisfied the requisite for passage, thereby resulting in passage of said proposals under application of the Company Law of Japan, the figures shown do not include the voting rights of some shareholders in attendance at the General Shareholders Meeting for whom approval, disapproval or abstention could not be confirmed. In calculating approval percentages, the number of voting rights of shareholders who were in attendance at the General Shareholders Meetings but whose approval, disapproval or abstention could not be confirmed was included in the denominator.