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    <title>News Release(Investors)</title>
<link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/" />
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    <id>tag:www.smm.co.jp,2021-01-08:/en/5</id>
    <updated>2026-05-17T22:25:35Z</updated>
    

<entry>
    <title>FY2025 Business Strategy Briefing</title>
    
      <link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/ir/event/roadshow/" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2116</id>

    <published>2026-05-17T22:24:55Z</published>
    <updated>2026-05-17T22:25:35Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>Consolidated Financial Results for the Year Ended March 31, 2026</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/05/002111.html#002111" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2111</id>

    <published>2026-05-11T00:38:32Z</published>
    <updated>2026-05-11T00:40:01Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1"><span class="s1">Please check the below PDF file for details.</span></p>]]>
        
    </content>
</entry>

<entry>
    <title>Notice regarding Revisions Made to FY2025 (101th Term) Dividend Forecast (Increase)</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/05/002110.html#002110" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2110</id>

    <published>2026-05-11T00:34:38Z</published>
    <updated>2026-05-11T00:37:11Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1">Please check the below PDF file for details.</p>]]>
        
    </content>
</entry>

<entry>
    <title>Notice regarding Repurchase of Own Shares and Cancellation of Own Shares</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/05/002107.html#002107" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2107</id>

    <published>2026-05-11T00:29:28Z</published>
    <updated>2026-05-11T00:30:35Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1"><span class="s1">Please check the below PDF file for details.</span></p>]]>
        
    </content>
</entry>

<entry>
    <title>FY2026 Capital Expenditure and Total Investment Plans</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/05/002106.html#002106" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2106</id>

    <published>2026-05-11T00:27:02Z</published>
    <updated>2026-05-11T00:28:12Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1"><span class="s1">Please check the below PDF file for details.</span></p>]]>
        
    </content>
</entry>

<entry>
    <title>Explanation Materials for Conference Call of  FY2025</title>
    
      <link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/ir/event/teleconference/" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2102</id>

    <published>2026-05-11T00:18:26Z</published>
    <updated>2026-05-11T00:19:30Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>Updated Corporate Governance Report</title>
    
      
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/uploaded_files/260323_CGR_E.pdf" />
      
    
<id>tag:www.smm.co.jp,2026:/en//5.2087</id>

    <published>2026-03-31T07:13:19Z</published>
    <updated>2026-03-31T07:14:03Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>Consolidated Financial Results for the Third Quarter Ended December 31, 2025</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/02/002078.html#002078" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2078</id>

    <published>2026-02-09T01:49:21Z</published>
    <updated>2026-03-04T03:28:27Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1"><span class="s1">Please check the below PDF file for details.</span></p>]]>
        
    </content>
</entry>

<entry>
    <title>Notice regarding Revisions Made to Consolidated Operating Results Forecast</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/02/002077.html#002077" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2077</id>

    <published>2026-02-09T01:48:18Z</published>
    <updated>2026-02-09T01:49:17Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1"><span class="s1">Please check the below PDF file for details.</span></p>]]>
        
    </content>
</entry>

<entry>
    <title>Notice regarding Changes to the Basic Policy of Financial Strategy and Shareholder Return Policy, and Revisions Made to Dividend Forecast</title>
    
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/2026/02/002076.html#002076" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2076</id>

    <published>2026-02-09T01:47:11Z</published>
    <updated>2026-02-09T01:48:12Z</updated>

    <summary>Please check the below PDF file for deta...</summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        <![CDATA[<p class="p1"><span class="s1">Please check the below PDF file for details.</span></p>]]>
        
    </content>
</entry>

<entry>
    <title>Explanation Materials for Conference Call of 3rd Quarter FY2025</title>
    
      <link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/ir/event/teleconference/" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2075</id>

    <published>2026-02-09T01:46:08Z</published>
    <updated>2026-02-09T01:46:52Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>IR-Day 2025 &quot;Advanced Material Business&quot;</title>
    
      <link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/ir/event/meeting/#section03" />
    
<id>tag:www.smm.co.jp,2026:/en//5.2069</id>

    <published>2026-01-14T02:48:06Z</published>
    <updated>2026-01-14T02:48:36Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>Updated Corporate Governance Report</title>
    
      
      <link rel="alternate" type="text/html" href="https://www.smm.co.jp/en/news/release/uploaded_files/251031_CGR_E.pdf" />
      
    
<id>tag:www.smm.co.jp,2025:/en//5.2052</id>

    <published>2025-12-03T04:07:24Z</published>
    <updated>2025-12-03T04:08:15Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>Sumitomo Metal Mining Published Integrated Report 2025</title>
    
      <link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/ir/library/integrated_report/" />
    
<id>tag:www.smm.co.jp,2025:/en//5.2051</id>

    <published>2025-11-28T05:41:50Z</published>
    <updated>2025-11-28T05:42:40Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
        <category term="Sustainability" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

<entry>
    <title>2nd Quarter of FY2025 Business Strategy Briefing</title>
    
      <link rel="alternate" type="text/html" href="http://www.smm.co.jp/en/ir/event/roadshow/" />
    
<id>tag:www.smm.co.jp,2025:/en//5.2049</id>

    <published>2025-11-16T23:55:27Z</published>
    <updated>2025-11-17T00:00:18Z</updated>

    <summary></summary>
    
        <category term="Investors" />
    
    
    <content type="html" xml:lang="en-us" xml:base="http://www.smm.co.jp/en/">
        
        
    </content>
</entry>

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