Announcement Regarding Approval for Listing on the Growth Market of the Tokyo Stock Exchange

Tier IV, Inc. (Headquarters: Minato-ku, Tokyo; Representative Director and CEO: Shuhei Kato; hereinafter "the Company") announces that today it has received approval from the Tokyo Stock Exchange, Inc. (hereinafter "TSE") for the initial listing of its shares on the Growth Market of the Tokyo Stock Exchange. The listing date is scheduled for July 22, 2026 (Wed), and from that date onward, trading of the Company's shares will be available on the exchange.

Under the vision of "Democratizing Autonomous Driving," since the 2015 release of Autoware, an open-source software for autonomous driving, the Company has led its development while openly providing various technologies contributing to safe autonomous driving. The Company has built an open ecosystem that enables diverse organizations and individuals to contribute to its advancement. Believing that autonomous driving has the power to transform people's lives and culture, the Company aims to create new value through technology, support people, and contribute to solving societal challenges. Going forward, the Company will continue striving toward realizing the democratization of autonomous driving by sharing knowledge and technology with partners worldwide.

For further details regarding the approval for initial listing, please refer to the Japan Exchange Group's website "Information on Newly Listed Companies."

Japan Exchange Group "Information on Newly Listed Companies" website

https://www.jpx.co.jp/listing/stocks/new/index.html

For the announcement titled "Resolution by the Board of Directors Regarding Issuance of New Shares and Public Offering of Shares," please see the following link:

https://tier4.co.jp/hubfs/ir/株式会社ティアフォー_募集株式発行及び株式売出しに関する取締役会決議のお知らせ.pdf

For the announcement titled "Outlook for the Fiscal Year Ending September 2026 (Revised)," please see the following link:

https://tier4.co.jp/hubfs/ir/株式会社ティアフォー_2026年9月期の業績予想について(訂正).pdf

Note: This document is a press release issued to publicly announce the approval for listing of the Company's shares on the Growth Market of the Tokyo Stock Exchange. It is not intended for use as an offer or solicitation of investment, either within Japan or internationally. Any investment decision regarding the issuance and public offering of the Company's ordinary shares, resolved by the Company's Board of Directors on June 29, 2026, must be made solely based on the "Prospectus for Issuance of New Shares and Public Offering of Shares" (including any amendments) prepared by the Company. The prospectus (and any amendments) can be obtained from the underwriting securities company.

This document does not constitute an offer or sale of securities in the United States. The Company's ordinary shares are not registered, nor will they be registered, under the U.S. Securities Act of 1933. Offers or sales of securities in the United States may only be made pursuant to registration under, or an exemption from the registration requirements of, the U.S. Securities Act of 1933. If a public offering of securities were to occur in the United States, an English-language prospectus prepared in accordance with the U.S. Securities Act of 1933 would be used. In such a case, the English-language prospectus could be obtained from the Company or the selling shareholders. The document would contain detailed information about the Company and its management, as well as the Company's financial statements. Please note that there are currently no plans to conduct a public offering in the United States.