CoastalSouth Bancshares, Inc. Announces Uplist to New York Stock Exchange

ATLANTA, GEORGIA (June 27, 2025) – CoastalSouth Bancshares, Inc. (OTCQX: COSO) (“CoastalSouth” or “Company”), a Georgia corporation and the bank holding company for Coastal States Bank, a wholly-owned subsidiary and a South Carolina state-chartered commercial bank, announced today that its shares of common stock have been approved for listing on the New York Stock Exchange (“NYSE”). The Company expects that its common stock will begin trading on the NYSE under the symbol, “COSO,” at the opening of trading on or about July 2, 2025, subject to continued compliance with the exchange rules.

The Company expects that its shares of common stock will continue to trade on the OTC Markets’ OTCQX Best Market until the close of the market on or about July 1, 2025. Upon effectiveness of the listing on the NYSE, trading of the common stock on the OTCQX will terminate. Stockholders of the Company do not need to take any action prior to the listing of the Company’s shares on the NYSE.

This communication does not constitute an offer, or a solicitation of an offer, to buy or sell any securities, investment or other specific product, or a solicitation of any vote or approval, nor shall there be any sale of securities, investment or other specific product in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.

About CoastalSouth Bancshares

CoastalSouth Bancshares, Inc. is a bank holding company headquartered in Atlanta, Georgia. Through our wholly owned subsidiary, Coastal States Bank, a South Carolina state-chartered commercial bank, we offer a full range of banking products and services designed for businesses, real estate professionals, and consumers looking for a deep and meaningful relationship with their bank.  Coastal States Bank has a community banking presence in the Lowcountry of South Carolina (Hilton Head Island, Bluffton and Beaufort), Savannah, and the Atlanta Metropolitan market, and serves communities across the country through its Government Guaranteed Lending, Senior Housing, Marine Lending, and Mortgage Banker Finance lines of business. At present, COSO has approximately $2.2 billion in total assets. To learn more visit https://www.coastalstatesbank.com/.

Forward-Looking Statements:

This press release contains statements that constitute “forward-looking statements.” The statements in this press release that are not purely historical are forward-looking statements which involve risks and uncertainties. This document specifically contains forward-looking statements regarding the expected listing on the NYSE, enhanced visibility of our company, expansion of our investor base, and enhanced liquidity of our shares of common stock. In evaluating these forward-looking statements, you should consider various factors, including our ability to keep pace with new technology and changing market needs; our ability to finance our current business and proposed future business; and the competitive environment of our business, as well as the performance of the stock market in general. Actual future performance outcomes and results may differ materially from those expressed in forward-looking statements. Forward-looking statements are subject to numerous conditions, many of which are beyond CoastalSouth’s control, including those set forth in the Risk Factors section of CoastalSouth’s Form S-1 filed with the Securities and Exchange Commission (the “SEC”) on June 6, 2025 and as amended on June 24, 2025, as well as any other SEC filings, as amended or updated from time to time. Copies of CoastalSouth’s filings with the SEC are available on the SEC's website at www.sec.gov. CoastalSouth undertakes no obligation to update these statements for revisions or changes after the date of this release, except as required by law.

Contact

Stephen R. Stone

President and Chief Executive Officer

CoastalSouth Bancshares, Inc.

[email protected]