Selection as a Member of the DJSI Asia/Pacific Index for ESG Investment

Mitsubishi Materials Corporation (President: Akira Takeuchi, capital: 119.4 billion yen; hereinafter "Mitsubishi Materials") is pleased to announce its selection as one of the members of the 2017 edition of the Dow Jones Sustainability Asia/Pacific Index, part of the Dow Jones Sustainability Indices (hereinafter "DJSI"), which are known worldwide as a family of stock price indices for investment in the environment, society and governance (hereinafter "ESG").

The DJSI are the most prominent stock price indices in the world, developed jointly by Dow Jones in the United States and RobecoSAM in Switzerland in 1999. The DJSI rate the long-term sustainability of companies in the areas of the economy, the environment and society. Investors interested in corporate social responsibility attach importance to investment in companies that take the three factors of the environment, society and governance into account. The DJSI serve them as important selection criteria.

One hundred fifty-two companies (72 of which are based in Japan), including Mitsubishi Materials, were selected from among the 600 largest companies in Asia and the Pacific for the Dow Jones Sustainability Asia/Pacific Index this year.

For your information, Mitsubishi Materials was selected as one of the members of the MSCI Japan ESG Select Leaders Index and the MSCI Japan Empowering Women Index (WIN) in July 2017 as well.

The Mitsubishi Materials Group will continue contributing to the sustainable development of society, promoting CSR activities based on Mitsubishi Materials' philosophy, "For People, Society and the Earth," and actively disclosing information to its stakeholders.

Dow Jones Sustainability Indices

<News release for reference>

Selection as a Component of Stock Price Index for ESG Investment, dated July 26, 2017

September 19, 2017