SB Energy Announces Public Filing of Registration Statement for Proposed Initial Public Offering

SB Energy, Inc. (“SB Energy”), a subsidiary of SoftBank Group Corp. (“SBG”), announced that, on September 1, 2026 (U.S. time), it has publicly filed a registration statement on Form S-1 (the “Registration Statement”) with the U.S. Securities and Exchange Commission (the “SEC”) relating to the proposed initial public offering of its common stock (the “Proposed Offering”). SB Energy has applied to list its common stock on the Nasdaq Global Select Market and Nasdaq Texas under the ticker symbol “SBE.” The number of shares to be offered and the price range for the Proposed Offering have not yet been determined. As part of the Proposed Offering, SB Energy is also proposing to undertake a public offer of shares to retail investors who are tax resident and located in the United Kingdom via a public offer platform operated by Marex Financial in accordance with the rules of the UK Financial Conduct Authority. The Proposed Offering is subject to market and other conditions, including effectiveness of the Registration Statement, and there can be no assurance as to whether or when the offering may be commenced or completed.

J.P. Morgan, Goldman Sachs & Co. LLC, Morgan Stanley, Citigroup and Mizuho are acting as joint lead book-running managers for the Proposed Offering.

The Proposed Offering will be made only by means of a prospectus. Once available, a copy of the preliminary prospectus relating to the Proposed Offering may be obtained by visiting EDGAR on the SEC’s website at www.sec.gov. Alternatively, when available, copies of the preliminary prospectus relating to the Proposed Offering may be obtained from: J.P. Morgan Securities LLC, Attention: c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, or by email at prospectus-eq_fi@jpmchase.com and postsalemanualrequests@broadridge.com; Goldman Sachs & Co. LLC, Attention: Prospectus Department, 200 West Street, New York, New York 10282, by telephone at 1-866-471-2526, by facsimile at 212-902-9316 or by email at prospectus-ny@ny.email.gs.com; or Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, New York 10014.

A registration statement relating to these securities has been filed with the SEC but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted, prior to the time the Registration Statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. Any offers, solicitations or offers to buy, or any sales of securities will be made in accordance with the registration requirements of the Securities Act of 1933, as amended.