Selected for "JPX-Nikkei Index 400"

Internet Initiative Japan Inc. has been selected for the JPX-Nikkei Index 400 (hereinafter the "JPX-Nikkei 400") calculated and published jointly by Japan Exchange Group, Inc., Tokyo Stock Exchange, Inc., JPX Market Innovation & Research, Inc. and Nikkei Inc.

This JPX-Nikkei 400 is composed of "companies that are highly attractive to investors" that meet the various requirements required for global investment standards, such as efficient use of capital and management with an awareness of investors. It is a stock price index developed with the aim of promoting the attractiveness of Japanese companies in Japan and overseas, promoting their sustainable improvement in corporate value, and revitalizing the stock market.

We strive to further increase its corporate value in order to continue meeting investor expectations.

For more details about the JPX-Nikkei 400, please refer to the following site:

• https://www.jpx.co.jp/english/markets/indices/jpx-nikkei400/