COSO

ATLANTA, July 20, 2026--(BUSINESS WIRE)--CoastalSouth Bancshares, Inc. ("CoastalSouth" or the "Company") (NYSE: COSO), the holding company for Coastal States Bank (the "Bank" or "CSB"), today reported net income of $7.3 million, or $0.59 per diluted share, for the second quarter of 2026, compared to approximately $6.3 million, or $0.51 per diluted share, for the first quarter of 2026, and $6.0 million, or $0.57 per diluted share, for the second quarter of 2025. For the six months ended June 30, 2026, the Company reported net income of $13.7 million, or $1.10 per diluted share, compared with $11.0 million, or $1.04 per diluted share, for the same period in 2025. Additionally, on July 20, 2026 the Board of Directors of CoastalSouth Bancshares, Inc. declared a per share quarterly dividend of $0.05. The dividend will be paid to shareholders of record as of the close of business on August 13, 2026, the record date. The dividend shall be paid on August 27, 2026. Commenting on the Company’s second quarter performance, President and Chief Executive Officer Stephen R. Stone stated, "We saw outstanding loan production2 of $181.6 million during the second quarter, driving a $78.1 million increase in loans held for investment, or 19.3% annualized. The majority of production in the second quarter continued to come from the community bank with each region, including our new Charleston team, providing meaningful contributions. We are pleased to have achieved this growth while expanding our net interest margin and maintaining low net charge-offs. We continue to see opportunities to invest in new CSB team members across our footprint particularly as a result of recent M&A activity. We are pleased with our financial results and we look forward to building upon this performance in the second half of the year." Second Quarter 2026 Performance Highlights: Net income of $7.3 million or $0.59 per diluted share Return on average assets ("ROAA") of 1.24% Return on average equity ("ROAE") of 11.02%; Return on average tangible common equity1 ("ROATCE") of 11.23% Net interest margin of 3.66%, an increase of 7 basis points from the first quarter of 2026 Total deposits decreased $9.5 million, principally driven by a decrease of $4.8 million in core deposits1 and a decrease in brokered certificates of deposit of $4.7 million Loans held for investment ("LHFI") production2 of $181.6 million during the second quarter of 2026 led to LHFI growth of $78.1 million, up 19.3% annualized from the first quarter of 2026 Book value per share growth of $0.53, or 9.69% annualized, to $22.47 at June 30, 2026; Tangible book value1 per common share growth of $0.54, or 10.06% annualized, to $22.06 at June 30, 2026 from the first quarter of 2026 Total shareholders' equity to total assets of 11.14%, compared to 11.20% as of the first quarter of 2026; Tangible common equity1 to tangible assets1 of 10.96%, compared to 11.01% as of March 31, 2026 Net charge-offs to average loans held for investment of 0.01% Nonperforming assets to total assets of 0.76%; adjusted nonperforming assets to total assets1 of 0.61% Allowance for credit losses ("ACL") on LHFI to total LHFI of 1.16%; ACL on LHFI to nonperforming loans of 108.16% Share repurchase program launched May 1, 2026; 48,491 shares repurchased during the second quarter of 2026 with weighted-average price per share of $25.48. Operating Highlights Net interest income totaled $20.7 million for the second quarter of 2026, an increase of $921 thousand, or 4.7%, from $19.7 million for the first quarter of 2026, and an increase of $2.6 million, or 14.3% from the second quarter of 2025. The Company’s net interest margin increased by 7 basis points to 3.66% for the second quarter of 2026, compared to 3.59% for the first quarter of 2026, and increased 20 basis points from the second quarter of 2025. The yield on average interest-earning assets for the second quarter of 2026 increased to 5.94% from 5.92% for the first quarter of 2026. This increase was primarily related to an overall yield increase in average interest-earning assets, principally investment securities; offset by a decrease in yield in LHFI. Compared to the second quarter of 2025, yields on earning assets decreased 14 basis points to 5.94% from 6.08%. The decrease was primarily attributable to interest rate cuts during 2025, notwithstanding a $169.0 million growth in average total earning assets. The Company’s total cost of funds was 2.50% for the second quarter of 2026, a decrease of 5 basis points compared to the first quarter of 2026, and 30 basis points compared to the second quarter of 2025. Deposit costs were 2.48% for the second quarter of 2026, compared to 2.54% for the first quarter of 2026, a decrease of 6 basis points, and 2.75% for the second quarter of 2025, a decrease of 27 basis points. The cost of interest-bearing deposits decreased 6 basis points during the second quarter of 2026 to 2.95%, compared with 3.01% in the first quarter of 2026, reflecting continued repricing of certificates of deposits during the second quarter of 2026. Noninterest income totaled $2.2 million for the second quarter of 2026, an increase of $235 thousand, or 12.0%, from the first quarter of 2026, primarily attributable to gain on sale of other loans, coupled with a net increase in other categories within noninterest income. Noninterest expense totaled $13.4 million for the second quarter of 2026, an increase of $330 thousand, or 2.5%, from the first quarter of 2026. This increase was primarily due to higher salaries and employee benefits, coupled with a net increase in other noninterest expense categories, principally in other professional services, software and other technology expense, and other noninterest expense; offset by a decrease in regulatory assessment expense. The Company continues to focus on organic growth and expansion through banker recruiting across the franchise. The Company’s effective tax rate for the second quarter of 2026 was 17.0%, compared to 23.6% for the first quarter of 2026, and 15.1% for the second quarter of 2025. The decrease in effective tax rate from the first quarter of 2026 was primarily due to a higher recognition of benefits from tax credits during the second quarter of 2026. Balance Sheet Trends Total assets were $2.42 billion at June 30, 2026, an increase of approximately $114.4 million, or 5.0%, from $2.31 billion at December 31, 2025. Loans held for sale ("LHFS") were $223.1 million at June 30, 2026, an increase of $52.2 million, or 30.5%, from $170.9 million at December 31, 2025. Gross LHFI were $1.71 billion at June 30, 2026, an increase of approximately $88.1 million, or 5.4%, from $1.62 billion at December 31, 2025. Total deposits were $2.05 billion at June 30, 2026, an increase of $60.0 million, or 3.0%, from $1.99 billion at December 31, 2025. Noninterest-bearing deposits were $355.9 million at June 30, 2026, or 17.4% of total deposits, compared to $312.3 million, or 15.7% of total deposits, at December 31, 2025. Brokered certificates of deposit, a component of time deposits, were $253.9 million at June 30, 2026, as compared to $307.0 million at December 31, 2025, a decrease of $53.1 million, or 17.3%. Credit Quality During the second quarter of 2026, the Company recorded a provision for credit losses of $658 thousand, compared to $382 thousand and $752 thousand during the first quarter of 2026 and the second quarter of 2025, respectively. The provision expense recorded during the second quarter of 2026 was due to loan production and updated collateral values on individually reviewed loans, offset with other changes in loss rates. The Company's annualized net charge-offs to average LHFI ratio was 0.01% for the second quarter of 2026 as compared to 0.01% and 0.06% during the first quarter of 2026 and the second quarter of 2025, respectively. Nonperforming assets totaled $18.3 million, or 0.76% of total assets, at June 30, 2026 compared to $18.3 million, or 0.79% of total assets at December 31, 2025. Adjusted nonperforming assets3, which excludes the guaranteed portions of nonaccrual loans, was $14.8 million, or 0.61% of total assets, at June 30, 2026 compared to $14.2 million, or 0.62% of total assets, at December 31, 2025. About CoastalSouth Bancshares, Inc. 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. To learn more about Coastal States Bank, visit www.coastalstatesbank.com. Forward-Looking Statements Statements in this press release regarding future events and our expectations and beliefs about our future financial performance and financial condition, as well as trends in our business and markets, constitute "forward-looking statements" within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are not historical in nature and may be identified by references to a future period or periods by the use of the words "believe," "expect," "anticipate," "intend," "plan," "estimate," "project," "outlook," or words of similar meaning, or future or conditional verbs such as "will," "would," "should," "could," or "may." The forward-looking statements in this press release should not be relied on because they are based on current information and on assumptions that we make about future events and circumstances that are subject to a number of known and unknown risks and uncertainties that are often difficult to predict and beyond our control. As a result of those risks and uncertainties, and other factors, our actual financial results in the future could differ, possibly materially, from those expressed in or implied by the forward-looking statements contained in this press release and could cause us to make changes to our future plans. Factors that might cause such differences include, but are not limited to: the impact of current and future economic conditions, particularly those affecting the financial services industry, including the effects of declines in the real estate market, high unemployment rates, inflationary pressures, elevated interest rates and slowdowns in economic growth, as well as the financial stress on borrowers as a result of the foregoing; potential impacts of any adverse developments in the banking industry, including any impacts on customer confidence, deposit outflows, liquidity and the regulatory response thereto; changes in the interest rate environment, including changes to the federal funds rate; changes in prices, values and sales volumes of residential and commercial real estate; competition in our markets that may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income; interest rate fluctuations, which could have an adverse effect on the Company’s profitability; a breach in security of our information systems, including the occurrence of cyber-attack incidents or deficiencies in cyber security; risks related to potential acquisitions; government actions or inactions, including a prolonged shutdown of the federal government, tariffs, or trade wars (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), legislation or regulatory changes which could adversely affect the ability of the consolidated Company to conduct business combinations or new operations; changes in tax laws; significant turbulence or a disruption in the capital or financial markets and the effect of a fall in stock market prices on our investment securities; the effects of war or other conflicts, domestic civil unrest and tyranny, and changes in the overall geopolitical landscape; and adverse results from current or future litigation, regulatory examinations or other legal and/or regulatory actions, including as a result of the Company’s participation in and execution of government programs. Therefore, the Company can give no assurance that the results contemplated in the forward-looking statements will be realized. Additional information regarding these and other risks and uncertainties to which our business and future financial performance are subject is contained in the section titled "Cautionary Note Regarding Forward-Looking Statements" and "Risk Factors" in the Company’s 2025 Annual Report on Form 10-K under the Securities Act of 1933, as amended, filed with the Securities and Exchange Commission (the "SEC") on March 12, 2026, and in other documents that we file with the SEC from time to time, which are available on the SEC’s website, http://www.sec.gov. In addition, our actual financial results in the future may differ from those currently expected due to additional risks and uncertainties of which we are not currently aware or which we do not currently view as, but in the future may become, material to our business or operating results. Due to these and other possible uncertainties and risks, readers are cautioned not to place undue reliance on the forward-looking statements contained in this press release or to make predictions based solely on historical financial performance. Any forward-looking statement speaks only as of the date on which it is made, and we do not undertake any obligation to update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. All forward-looking statements, express or implied, included in this press release are qualified in their entirety by this cautionary statement. Non-GAAP Financial Measures The measures entitled return on average tangible common equity, tangible book value per common share, tangible common equity, tangible assets, adjusted nonperforming assets to total assets, adjusted nonperforming assets, pre-tax, pre-provision net revenue ("PPNR"), tangible common equity to tangible assets and core deposits are not measures recognized under accounting principles generally accepted in the United States of America ("GAAP") and therefore are considered non-GAAP financial measures. The most comparable GAAP measures to these measures are return on average shareholders’ equity, book value per share, total shareholders’ equity, total assets, total nonperforming assets to total assets, total nonperforming assets, net income, total common equity to total assets, and total deposits, respectively. Management believes that these non-GAAP financial measures and the information they provide are useful to investors since these measures permit investors to view the Company’s performance using the same tools that management uses to evaluate the Company’s past performance and prospects for future performance. While management believes that these non-GAAP financial measures are useful in evaluating our performance, this information should be considered as supplemental and not as a substitute for or superior to the related financial information prepared in accordance with GAAP. Additionally, these non-GAAP financial measures should be considered as additional views of the way the Company’s financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies. View source version on businesswire.com: https://www.businesswire.com/news/home/20260720802179/en/ Contacts Stephen R. StonePresident and Chief Executive Officer Anthony P. ValdugaChief Financial Officer / Chief Operating Officer [email protected]

CoastalSouth Bancshares, Inc. (COSO) came out with quarterly earnings of $0.59 per share, missing the Zacks Consensus Estimate of $0.61 per share. This compares to earnings of $0.57 per share a year ago. These figures are adjusted for non-recurring items. This quarterly report represents an earnings surprise of -3.28%. A quarter ago, it was expected that this company would post earnings of $0.56 per share when it actually produced earnings of $0.51, delivering a surprise of -8.93%. Over the last four quarters, the company has not been able to surpass consensus EPS estimates. CoastalSouth Bancshares, Inc., which belongs to the Zacks Banks - Southeast industry, posted revenues of $22.87 million for the quarter ended June 2026, missing the Zacks Consensus Estimate by 1.86%. This compares to year-ago revenues of $19.87 million. The company has not been able to beat consensus revenue estimates over the last four quarters. The sustainability of the stock's immediate price movement based on the recently-released numbers and future earnings expectations will mostly depend on management's commentary on the earnings call. CoastalSouth Bancshares, Inc. shares have added about 16.4% since the beginning of the year versus the S&P 500's gain of 8.9%. While CoastalSouth Bancshares, Inc. has outperformed the market so far this year, the question that comes to investors' minds is: what's next for the stock? There are no easy answers to this key question, but one reliable measure that can help investors address this is the company's earnings outlook. Not only does this include current consensus earnings expectations for the coming quarter(s), but also how these expectations have changed lately. Empirical research shows a strong correlation between near-term stock movements and trends in earnings estimate revisions. Investors can track such revisions by themselves or rely on a tried-and-tested rating tool like the Zacks Rank, which has an impressive track record of harnessing the power of earnings estimate revisions. Ahead of this earnings release, the estimate revisions trend for CoastalSouth Bancshares, Inc. was mixed. While the magnitude and direction of estimate revisions could change following the company's just-released earnings report, the current status translates into a Zacks Rank #3 (Hold) for the stock. So, the shares are expected to perform in line with the market in the near future. You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here. It will be interesting to see how estimates for the coming quarters and the current fiscal year change in the days ahead. The current consensus EPS estimate is $0.64 on $24.4 million in revenues for the coming quarter and $2.42 on $93.9 million in revenues for the current fiscal year. Investors should be mindful of the fact that the outlook for the industry can have a material impact on the performance of the stock as well. In terms of the Zacks Industry Rank, Banks - Southeast is currently in the top 36% of the 250 plus Zacks industries. Our research shows that the top 50% of the Zacks-ranked industries outperform the bottom 50% by a factor of more than 2 to 1. One other stock from the same industry, Ameris Bancorp (ABCB), is yet to report results for the quarter ended June 2026. The results are expected to be released on July 23. This bank is expected to post quarterly earnings of $1.66 per share in its upcoming report, which represents a year-over-year change of +4.4%. The consensus EPS estimate for the quarter has been revised 0.4% lower over the last 30 days to the current level. Ameris Bancorp's revenues are expected to be $322.17 million, up 6.8% from the year-ago quarter. Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report CoastalSouth Bancshares, Inc. (COSO) : Free Stock Analysis Report Ameris Bancorp (ABCB) : Free Stock Analysis Report This article originally published on Zacks Investment Research (zacks.com). Zacks Investment Research

Regions Financial (RF) came out with quarterly earnings of $0.68 per share, beating the Zacks Consensus Estimate of $0.64 per share. This compares to earnings of $0.6 per share a year ago. These figures are adjusted for non-recurring items. This quarterly report represents an earnings surprise of +6.25%. A quarter ago, it was expected that this holding company for Regions Bank would post earnings of $0.61 per share when it actually produced earnings of $0.62, delivering a surprise of +1.64%. Over the last four quarters, the company has surpassed consensus EPS estimates three times. Regions Financial, which belongs to the Zacks Banks - Southeast industry, posted revenues of $1.91 billion for the quarter ended June 2026, missing the Zacks Consensus Estimate by 2.33%. This compares to year-ago revenues of $1.91 billion. The company has not been able to beat consensus revenue estimates over the last four quarters. The sustainability of the stock's immediate price movement based on the recently-released numbers and future earnings expectations will mostly depend on management's commentary on the earnings call. Regions Financial shares have added about 19.6% since the beginning of the year versus the S&P 500's gain of 10.1%. While Regions Financial has outperformed the market so far this year, the question that comes to investors' minds is: what's next for the stock? There are no easy answers to this key question, but one reliable measure that can help investors address this is the company's earnings outlook. Not only does this include current consensus earnings expectations for the coming quarter(s), but also how these expectations have changed lately. Empirical research shows a strong correlation between near-term stock movements and trends in earnings estimate revisions. Investors can track such revisions by themselves or rely on a tried-and-tested rating tool like the Zacks Rank, which has an impressive track record of harnessing the power of earnings estimate revisions. Ahead of this earnings release, the estimate revisions trend for Regions Financial was mixed. While the magnitude and direction of estimate revisions could change following the company's just-released earnings report, the current status translates into a Zacks Rank #3 (Hold) for the stock. So, the shares are expected to perform in line with the market in the near future. You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here. It will be interesting to see how estimates for the coming quarters and the current fiscal year change in the days ahead. The current consensus EPS estimate is $0.67 on $1.99 billion in revenues for the coming quarter and $2.60 on $7.83 billion in revenues for the current fiscal year. Investors should be mindful of the fact that the outlook for the industry can have a material impact on the performance of the stock as well. In terms of the Zacks Industry Rank, Banks - Southeast is currently in the top 31% of the 250 plus Zacks industries. Our research shows that the top 50% of the Zacks-ranked industries outperform the bottom 50% by a factor of more than 2 to 1. Another stock from the same industry, CoastalSouth Bancshares, Inc. (COSO), has yet to report results for the quarter ended June 2026. This company is expected to post quarterly earnings of $0.61 per share in its upcoming report, which represents a year-over-year change of +7%. The consensus EPS estimate for the quarter has remained unchanged over the last 30 days. CoastalSouth Bancshares, Inc.'s revenues are expected to be $23.3 million, up 17.3% from the year-ago quarter. Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Regions Financial Corporation (RF) : Free Stock Analysis Report CoastalSouth Bancshares, Inc. (COSO) : Free Stock Analysis Report This article originally published on Zacks Investment Research (zacks.com). Zacks Investment Research

ATLANTA, April 20, 2026--(BUSINESS WIRE)--CoastalSouth Bancshares, Inc. ("CoastalSouth" or the "Company") (NYSE: COSO), the holding company for Coastal States Bank (the "Bank" or "CSB"), today reported net income of $6.3 million, or $0.51 per diluted share, for the first quarter of 2026, compared to approximately $7.1 million, or $0.58 per diluted share, for the fourth quarter of 2025, and $5.1 million, or $0.47 per diluted share, for the first quarter of 2025. Additionally, on April 17, 2026 the Board of Directors of CoastalSouth Bancshares, Inc. declared a per share quarterly dividend of $0.05. The dividend will be paid in cash to all shareholders with outstanding shares as of the close of business on May 14, 2026, the record date. The dividend shall be paid on May 28, 2026. Commenting on the Company’s results, President and Chief Executive Officer, Stephen R. Stone stated, "We started strong in 2026 by growing $117.9 million in core deposits1 during the first quarter. Our core deposit growth has allowed us to reduce alternative funding sources and will provide liquidity for continued loan growth. We were pleased to see core deposit growth across all of our markets. We also produced $166.7 million in loans held for investment in the first quarter and our loan pipeline continued to grow, particularly with the addition of new commercial bankers across the franchise." First Quarter 2026 Performance Highlights: Net income of $6.3 million or $0.51 per diluted share Return on average assets ("ROAA") of 1.10% Return on average equity ("ROAE") of 9.71%; Return on average tangible common equity1 ("ROATCE") of 9.90% Net interest margin of 3.59%, a decrease of 1 basis point from the fourth quarter of 2025 Total deposits increased $69.5 million, driven by growth of $117.9 million in core deposits1 and a decrease in brokered certificates of deposits of $48.4 million Loans held for investment ("LHFI") production2 of $166.7 million during the first quarter of 2026 led to LHFI growth of $9.9 million, up 2.5% annualized from the fourth quarter of 2025 Book value per share growth of $0.28, or 5.24% annualized, to $21.94 at March 31, 2026; Tangible book value1 per share growth of $0.27, or 5.15% annualized, to $21.52 at March 31, 2026 from the fourth quarter of 2025 Total shareholders' equity to total assets of 11.20%, compared to 11.25% as of the fourth quarter of 2025; Tangible common equity1 to tangible assets1 of 11.01%, compared to 11.06% at December 31, 2025 Net charge-offs to average loans held for investment of 0.01% Nonperforming assets to total assets of 0.77%; adjusted nonperforming assets to total assets1 of 0.62% Allowance for credit losses ("ACL") on LHFI to total LHFI of 1.16%; ACL on LHFI to nonperforming loans of 103.54% Operating Highlights Net interest income totaled $19.7 million for the first quarter of 2026, a decrease of approximately $119 thousand, or 0.6%, from $19.9 million for the fourth quarter of 2025, and an increase of approximately $3.0 million, or 17.8% from the first quarter of 2025. The Company’s net interest margin decreased by 1 basis point to 3.59% for the first quarter of 2026, compared to 3.60% for the fourth quarter of 2025, and increased 21 basis points from the first quarter of 2025. The yield on average interest-earning assets for the first quarter of 2026 decreased to 5.92% from 5.98% for the fourth quarter of 2025. This decrease was primarily related to an overall yield decrease in interest-earning assets, primarily federal funds sold, loans held for sale, and investment securities due to recent interest rate cuts, notwithstanding significant growth in average total earning assets. Compared to the first quarter of 2025, yields on earning assets decreased 13 basis points to 5.92% from 6.05%. The decrease was primarily attributable to the aforementioned interest rate cuts during 2025. The Company’s total cost of funds was 2.55% for the first quarter of 2026, a decrease of 5 basis points and 30 basis points compared with the fourth and first quarters of 2025, respectively. Deposit costs decreased 5 and 26 basis points during the first quarter of 2026 to 2.54%, compared to 2.59% and 2.80% in the fourth and first quarters of 2025, respectively. The cost of interest-bearing deposits decreased 8 basis points during the first quarter of 2026 to 3.01%, compared with 3.09% in the fourth quarter of 2025, reflecting continued repricing of certificates of deposits in the first quarter of 2026. Noninterest income totaled $2.0 million for the first quarter of 2026, a decrease of $328 thousand, or 14.3%, from the fourth quarter of 2025, primarily attributable to a decrease in gain on sale of government guaranteed loans ("GGL"), net of other categories within noninterest income. Noninterest expense totaled $13.0 million for the first quarter of 2026, an increase of $782 thousand, or 6.4%, from the fourth quarter of 2025. This increase was primarily due to higher salaries and employee benefits, other professional services, and other noninterest expense. The Company continues to focus on organic growth and expansion through banker recruiting across the franchise. The Company’s effective tax rate for the first quarter of 2026 was 23.6%, compared to 18.3% for the fourth quarter of 2025, and 23.4% for the first quarter of 2025. The increase in effective tax rate from the fourth quarter of 2025 was primarily due to a lower recognition of benefits from tax credits in the first quarter of 2026. Balance Sheet Trends Total assets were $2.35 billion at March 31, 2026, an increase of approximately $42.0 million, or 1.8%, from $2.31 billion at December 31, 2025. Loans held for sale ("LHFS") were $202.6 million at March 31, 2026, an increase of $31.7 million, or 18.5%, from $170.9 million at December 31, 2025. Gross LHFI were $1.63 billion at March 31, 2026, an increase of approximately $9.9 million, or 0.6%, from $1.62 billion at December 31, 2025. Total deposits were $2.06 billion at March 31, 2026, an increase of $69.5 million, or 3.5%, from $1.99 billion at December 31, 2025. Noninterest-bearing deposits were $311.1 million at March 31, 2026, or 15.1% of total deposits, compared to $312.3 million, or 15.7% of total deposits, at December 31, 2025. Brokered certificates of deposit, a component of time deposits, were $258.6 million at March 31, 2026, as compared to $307.0 million at December 31, 2025, a decrease of $48.4 million, or 15.8%. Credit Quality During the first quarter of 2026, the Company recorded a provision for credit losses of $382 thousand, compared to $1.2 million and $629 thousand during the fourth and first quarters of 2025, respectively. The provision expense recorded during the first quarter of 2026 was due to loan production and mix and economic factors, offset with other changes in loss rates. The Company's annualized net charge-offs to average LHFI ratio was 0.01% for the first quarter of 2026 as compared to 0.00% and 0.00% during the fourth and first quarters of 2025, respectively. Nonperforming assets totaled $18.2 million, or 0.77% of total assets, at March 31, 2026 compared to $18.3 million, or 0.79% of total assets at December 31, 2025. The $123 thousand decrease in nonperforming assets at March 31, 2026 from December 31, 2025 was primarily due to payments on nonaccrual assets, offset with additions to nonaccrual assets. Adjusted nonperforming assets3, which excludes the guaranteed portions of nonaccrual loans, was $14.5 million, or 0.62% of total assets, at March 31, 2026 compared to $14.2 million, or 0.62% of total assets, at December 31, 2025. About CoastalSouth Bancshares, Inc. 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. To learn more about Coastal States Bank, visit www.coastalstatesbank.com. Forward-Looking Statements Statements in this press release regarding future events and our expectations and beliefs about our future financial performance and financial condition, as well as trends in our business and markets, constitute "forward-looking statements" within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are not historical in nature and may be identified by references to a future period or periods by the use of the words "believe," "expect," "anticipate," "intend," "plan," "estimate," "project," "outlook," or words of similar meaning, or future or conditional verbs such as "will," "would," "should," "could," or "may." The forward-looking statements in this press release should not be relied on because they are based on current information and on assumptions that we make about future events and circumstances that are subject to a number of known and unknown risks and uncertainties that are often difficult to predict and beyond our control. As a result of those risks and uncertainties, and other factors, our actual financial results in the future could differ, possibly materially, from those expressed in or implied by the forward-looking statements contained in this press release and could cause us to make changes to our future plans. Factors that might cause such differences include, but are not limited to: the impact of current and future economic conditions, particularly those affecting the financial services industry, including the effects of declines in the real estate market, high unemployment rates, inflationary pressures, elevated interest rates and slowdowns in economic growth, as well as the financial stress on borrowers as a result of the foregoing; potential impacts of any adverse developments in the banking industry, including any impacts on customer confidence, deposit outflows, liquidity and the regulatory response thereto; changes in the interest rate environment, including changes to the federal funds rate; changes in prices, values and sales volumes of residential and commercial real estate; competition in our markets that may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income; interest rate fluctuations, which could have an adverse effect on the Company’s profitability; a breach in security of our information systems, including the occurrence of a cyber-attack incidents or a deficiencies in cyber security; risks related to potential acquisitions; government actions or inactions, including a prolonged shutdown of the federal government, tariffs, or trade wars (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), legislation or regulatory changes which could adversely affect the ability of the consolidated Company to conduct business combinations or new operations; changes in tax laws; significant turbulence or a disruption in the capital or financial markets and the effect of a fall in stock market prices on our investment securities; the effects of war or other conflicts, domestic civil unrest and tyranny, and changes in the overall geopolitical landscape; and adverse results from current or future litigation, regulatory examinations or other legal and/or regulatory actions, including as a result of the Company’s participation in and execution of government programs. Therefore, the Company can give no assurance that the results contemplated in the forward-looking statements will be realized. Additional information regarding these and other risks and uncertainties to which our business and future financial performance are subject is contained in the section titled "Cautionary Note Regarding Forward-Looking Statements" and "Risk Factors" in the Company’s 2025 Annual Report on Form 10-K under the Securities Act of 1933, as amended, filed with the Securities and Exchange Commission (the "SEC") on March 12, 2026, and in other documents that we file with the SEC from time to time, which are available on the SEC’s website, http://www.sec.gov. In addition, our actual financial results in the future may differ from those currently expected due to additional risks and uncertainties of which we are not currently aware or which we do not currently view as, but in the future may become, material to our business or operating results. Due to these and other possible uncertainties and risks, readers are cautioned not to place undue reliance on the forward-looking statements contained in this press release or to make predictions based solely on historical financial performance. Any forward-looking statement speaks only as of the date on which it is made, and we do not undertake any obligation to update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. All forward-looking statements, express or implied, included in this press release are qualified in their entirety by this cautionary statement. Non-GAAP Financial Measures The measures entitled return on average tangible common shareholders' equity, tangible book value per common share, tangible common equity, tangible assets, adjusted nonperforming assets to total assets, adjusted nonperforming assets, pre-tax, pre-provision net revenue ("PPNR"), tangible common equity to tangible assets and core deposits are not measures recognized under accounting principles generally accepted in the United States of America ("GAAP") and therefore are considered non-GAAP financial measures. The most comparable GAAP measures to these measures are return on average shareholders’ equity, book value per share, total shareholders’ equity, total assets, total nonperforming assets to total assets, total nonperforming assets, net income, total common equity to total assets, and total deposits, respectively. Management believes that these non-GAAP financial measures and the information they provide are useful to investors since these measures permit investors to view the Company’s performance using the same tools that management uses to evaluate the Company’s past performance and prospects for future performance. While management believes that these non-GAAP financial measures are useful in evaluating our performance, this information should be considered as supplemental and not as a substitute for or superior to the related financial information prepared in accordance with GAAP. Additionally, these non-GAAP financial measures should be considered as additional views of the way the Company’s financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies. View source version on businesswire.com: https://www.businesswire.com/news/home/20260420651504/en/ Contacts Stephen R. Stone President and Chief Executive Officer Anthony P. Valduga Chief Financial Officer / Chief Operating Officer 678-396-4605 [email protected]

ATLANTA, January 20, 2026--(BUSINESS WIRE)--CoastalSouth Bancshares, Inc. ("CoastalSouth" or the "Company") (NYSE: COSO), the holding company for Coastal States Bank (the "Bank" or "CSB"), today reported net income of $7.1 million, or $0.58 per diluted share, for the fourth quarter of 2025, compared to approximately $6.7 million, or $0.54 per diluted share, for the third quarter of 2025, and $5.7 million, or $0.54 per diluted share, for the fourth quarter of 2024. For the year ended December 31, 2025, the Company reported net income of $24.9 million, or $2.16 per diluted share, compared with $21.9 million, or $2.09 per diluted share, for the year ended December 31, 2024. Commenting on the Company’s results, President and Chief Executive Officer, Stephen R. Stone stated, "We are pleased to report record net income for the year of $24.9 million and pre-tax pre-provision net revenue1 ("PPNR") of $34.3 million, which is an increase of 23.6% compared to December 31, 2024. We also produced over $776.0 million in loan commitments and grew core deposits1 by over $120.7 million." Mr. Stone also announced the Company's strategic expansion into the Charleston, SC market. "This expansion builds upon the strong foundation we have established in the Lowcountry and reflects our continued investment in this dynamic region," said Stone. "CSB has assembled a locally based commercial banking team with extensive experience serving businesses throughout Charleston and the broader Lowcountry market. The team we have assembled, led by Edward Vaughan, Charleston Market President, will help us continue to drive strong loan and deposit growth." Fourth Quarter 2025 Performance Highlights: Net income of $7.1 million or $0.58 per diluted share Return on average assets ("ROAA") of 1.24% Return on average equity ("ROAE") of 11.02%; Return on average tangible common equity1 ("ROATCE") of 11.24% Net interest margin of 3.60%, an increase of 2 basis points from the third quarter of 2025 Efficiency ratio of 55.34% for the fourth quarter of 2025 Loans held for investment ("LHFI") production2 of $225.1 million during the fourth quarter of 2025 led to LHFI growth of $64.3 million, up 16.4% annualized from the third quarter of 2025 Book value per share growth of $0.75, or 14.23% annualized, to $21.66 at December 31, 2025; Tangible book value1 per share growth of $0.76, or 14.72% annualized, to $21.25 at December 31, 2025 from the third quarter of 2025 Total shareholders' equity to total assets of 11.25%, compared to 11.10% as of the third quarter of 2025; Tangible common equity1 to tangible assets1 of 11.06%, compared to 10.91% at September 30, 2025 Net charge-offs to average loans held for investment of 0.00% Nonperforming assets to total assets of 0.79%; adjusted nonperforming assets to total assets1 of 0.62% Allowance for credit losses ("ACL") on LHFI to total LHFI of 1.16%; ACL on LHFI to nonperforming loans of 102.39% Operating Highlights Net interest income totaled $19.9 million for the fourth quarter of 2025, an increase of $673 thousand, or 3.5%, from $19.2 million for the third quarter of 2025 and an increase of $3.6 million, or 22.1% from the fourth quarter of 2024. The Company’s net interest margin expanded to 3.60% for the fourth quarter of 2025, a 2 basis point increase from the third quarter of 2025 and a 39 basis point increase from the fourth quarter of 2024. The yield on average interest-earning assets for the fourth quarter of 2025 decreased to 5.98% from 6.14% for the third quarter of 2025. This decrease was primarily related to an overall yield decrease in all interest-earning assets, primarily due to the recent interest rate cuts, albeit a significant growth in average total earning assets. Compared to the fourth quarter of 2024, yields on earning assets decreased 4 basis points to 5.98% from 6.02%. The decrease was primarily attributable to the aforementioned interest rate cuts during 2025, offset by significant growth of $171.9 million in average total earning assets, primarily in LHFI. The Company’s total cost of funds was 2.60% for the fourth quarter of 2025, a decrease of 19 basis points and 39 basis points compared with the third quarter of 2025 and fourth quarter of 2024, respectively. Deposit costs decreased 13 basis points during the fourth quarter of 2025 to 2.59%, compared to 2.72% in the third quarter of 2025. The cost of interest-bearing deposits decreased 14 basis points during the fourth quarter of 2025 to 3.09%, compared with 3.23% in the third quarter of 2025, reflecting continued repricing of certificates of deposits in the fourth quarter of 2025. Noninterest income totaled $2.3 million for the fourth quarter of 2025, an increase of $195 thousand, or 9.3%, from the third quarter of 2025, primarily attributable to an increase in gain on sale of government guaranteed loans ("GGL"), service charges on deposits, mortgage banking related income and other noninterest income. Noninterest expense totaled $12.3 million for the fourth quarter of 2025, an increase of $406 thousand, or 3.4%, from the third quarter of 2025, primarily due to higher salaries and employee benefits; offset by decreases in other categories, primarily other professional services. The Company’s effective tax rate for the fourth quarter of 2025 was 18.3%, compared to 23.2% for the third quarter of 2025 and 14.3% for the fourth quarter of 2024. The decrease in effective tax rate from the third quarter of 2025 was primarily due to a higher recognition of benefits from tax credits in the fourth quarter of 2025. Balance Sheet Trends Total assets were $2.31 billion at December 31, 2025, an increase of $207.9 million, or 9.9%, from $2.10 billion at December 31, 2024. Loans held for sale ("LHFS") were $170.9 million at December 31, 2025, a decrease of $3.1 million, or 1.8%, from $174.0 million at December 31, 2024. Gross LHFI were $1.62 billion at December 31, 2025, an increase of $207.9 million, or 14.7%, from $1.41 billion at December 31, 2024. Total deposits were $1.99 billion at December 31, 2025, an increase of $152.9 million, or 8.3%, from $1.83 billion at December 31, 2024. Noninterest-bearing deposits were $312.3 million at December 31, 2025, or 15.7% of total deposits, compared to $302.9 million, or 16.5% of total deposits, at December 31, 2024. Brokered certificates of deposits, a component of time deposits, were $307.0 million at December 31, 2025, as compared to $274.9 million at December 31, 2024, an increase of $32.1 million, or 11.7%. Credit Quality During the fourth quarter of 2025, the Company recorded a provision for credit losses of $1.2 million, compared to $653 thousand and $1.2 million during the third quarter of 2025 and fourth quarter of 2024, respectively. The provision expense recorded during the fourth quarter of 2025 was due to increased loan production and other changes in loss rates and economic factors. The Company's annualized net charge-offs (recoveries) to average LHFI ratio was 0.00% for the fourth quarter of 2025 as compared to 0.03% and (0.02)% during the third quarter of 2025 and fourth quarter of 2024, respectively. Nonperforming assets totaled $18.3 million, or 0.79% of total assets, at December 31, 2025 compared to $15.9 million, or 0.76% of total assets at December 31, 2024. The $2.4 million increase in nonperforming assets at December 31, 2025 from December 31, 2024 was primarily due to the transfer of one senior housing loan to nonaccrual. This is a construction loan for an assisted living facility that is approximately 92% complete and has a current loan-to-value of 55%. Adjusted nonperforming assets3, which excludes the guaranteed portions of nonaccrual loans, was $14.2 million, or 0.62% of total assets, at December 31, 2025 compared to $11.1 million, or 0.53% of total assets, at December 31, 2024. About CoastalSouth Bancshares, Inc. 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. To learn more about Coastal States Bank, visit www.coastalstatesbank.com. Forward-Looking Statements Statements in this press release regarding future events and our expectations and beliefs about our future financial performance and financial condition, as well as trends in our business and markets, constitute "forward-looking statements" within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are not historical in nature and may be identified by references to a future period or periods by the use of the words "believe," "expect," "anticipate," "intend," "plan," "estimate," "project," "outlook," or words of similar meaning, or future or conditional verbs such as "will," "would," "should," "could," or "may." The forward-looking statements in this press release should not be relied on because they are based on current information and on assumptions that we make about future events and circumstances that are subject to a number of known and unknown risks and uncertainties that are often difficult to predict and beyond our control. As a result of those risks and uncertainties, and other factors, our actual financial results in the future could differ, possibly materially, from those expressed in or implied by the forward-looking statements contained in this press release and could cause us to make changes to our future plans. Factors that might cause such differences include, but are not limited to: the impact of current and future economic conditions, particularly those affecting the financial services industry, including the effects of declines in the real estate market, high unemployment rates, inflationary pressures, elevated interest rates and slowdowns in economic growth, as well as the financial stress on borrowers as a result of the foregoing; potential impacts of any adverse developments in the banking industry, including any impacts on customer confidence, deposit outflows, liquidity and the regulatory response thereto; changes in the interest rate environment, including changes to the federal funds rate; changes in prices, values and sales volumes of residential and commercial real estate; competition in our markets that may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income; interest rate fluctuations, which could have an adverse effect on the Company’s profitability; a breach in security of our information systems, including the occurrence of a cyber-attack incidents or a deficiencies in cyber security; risks related to potential acquisitions; government actions or inactions, including a prolonged shutdown of the federal government, tariffs, or trade wars (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), legislation or regulatory changes which could adversely affect the ability of the consolidated Company to conduct business combinations or new operations; changes in tax laws; significant turbulence or a disruption in the capital or financial markets and the effect of a fall in stock market prices on our investment securities; the effects of war or other conflicts, domestic civil unrest and tyranny, and changes in the overall geopolitical landscape; and adverse results from current or future litigation, regulatory examinations or other legal and/or regulatory actions, including as a result of the Company’s participation in and execution of government programs. Therefore, the Company can give no assurance that the results contemplated in the forward-looking statements will be realized. Additional information regarding these and other risks and uncertainties to which our business and future financial performance are subject is contained in the section titled "Cautionary Note Regarding Forward-Looking Statements" and "Risk Factors" in the Company’s final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act of 1933, as amended, filed with the Securities and Exchange Commission (the "SEC") on July 2, 2025 (Registration No. 333-287854), relating to our initial public offering, and in other documents that we file with the SEC from time to time, which are available on the SEC’s website, http://www.sec.gov. In addition, our actual financial results in the future may differ from those currently expected due to additional risks and uncertainties of which we are not currently aware or which we do not currently view as, but in the future may become, material to our business or operating results. Due to these and other possible uncertainties and risks, readers are cautioned not to place undue reliance on the forward-looking statements contained in this press release or to make predictions based solely on historical financial performance. Any forward-looking statement speaks only as of the date on which it is made, and we do not undertake any obligation to update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. All forward-looking statements, express or implied, included in this press release are qualified in their entirety by this cautionary statement. Non-GAAP Financial Measures The measures entitled return on average tangible common equity, tangible book value per share, tangible common equity, tangible assets, adjusted nonperforming assets to total assets, adjusted nonperforming assets, adjusted net income, adjusted basic earnings per share, adjusted diluted earnings per share, pre-tax, pre-provision net revenue ("PPNR"), adjusted return on average assets, adjusted return on average equity, efficiency ratio, as adjusted, adjusted return on average tangible common equity, adjusted noninterest income to total revenue, tangible common equity to tangible assets and core deposits are not measures recognized under accounting principles generally accepted in the United States of America ("GAAP") and therefore are considered non-GAAP financial measures. The most comparable GAAP measures to these measures are return on average shareholders’ equity, book value per share, total shareholders’ equity, total assets, total nonperforming assets to total assets, total nonperforming assets, net income, basic earnings per share, diluted earnings per share, net income, return on average assets, return on average equity, the efficiency ratio, return on average equity, noninterest income to total revenue, total common equity to total assets, and total deposits, respectively. Management believes that these non-GAAP financial measures and the information they provide are useful to investors since these measures permit investors to view the Company’s performance using the same tools that management uses to evaluate the Company’s past performance and prospects for future performance. While management believes that these non-GAAP financial measures are useful in evaluating our performance, this information should be considered as supplemental and not as a substitute for or superior to the related financial information prepared in accordance with GAAP. Additionally, these non-GAAP financial measures should be considered as additional views of the way the Company’s financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies. View source version on businesswire.com: https://www.businesswire.com/news/home/20260120277192/en/ Contacts Stephen R. Stone President and Chief Executive Officer Anthony P. Valduga Chief Financial Officer / Chief Operating Officer 678-396-4605 [email protected]

ATLANTA, October 21, 2025--(BUSINESS WIRE)--Please replace the logo with the accompanying corrected logo. The release reads: COASTALSOUTH BANCSHARES, INC. REPORTS EARNINGS FOR THIRD QUARTER 2025 CoastalSouth Bancshares, Inc. ("CoastalSouth" or the "Company") (NYSE: COSO), the holding company for Coastal States Bank (the "Bank"), today reported net income of $6.7 million, or $0.54 per diluted share, for the third quarter of 2025, compared to approximately $6.0 million, or $0.57 per diluted share, for the second quarter of 2025, and $7.9 million, or $0.75 per diluted share, for the third quarter of 2024. For the year-to-date period ending September 30, 2025, the Company reported net income of $17.8 million, or $1.58 per diluted share, compared with $16.2 million, or $1.55 per diluted share, for the same period in 2024. Commenting on the Company’s results, President and Chief Executive Officer, Stephen R. Stone stated, "Following the completion of our initial public offering on July 2, 2025, the Company continued to deliver excellent financial performance through the third quarter of 2025. Loan production continued to be robust with over $137.3 million in new commitments originated during the third quarter of 2025 while maintaining strong asset quality metrics. Given the recent acceleration of mergers and acquisition activity in our markets, we continue to focus on recruiting new bankers to expand our presence within our markets and grow new relationships." Third Quarter 2025 Performance Highlights: Net income of $6.7 million or $0.54 per diluted share Return on average assets ("ROAA") of 1.20% Return on average equity ("ROAE") of 10.84%; Return on average tangible common equity ("ROATCE") of 11.07%1 Net interest margin of 3.58%, an increase of 12 basis points from the second quarter of 2025 Efficiency ratio of 55.69% for the third quarter of 2025 Loans held for investment ("LHFI") production of $137.3 million in commitments led to LHFI growth of $25.8 million, up 6.7% annualized from the second quarter of 2025 Book value per share growth of $0.54, or 10.5% annualized, to $20.91 at September 30, 2025; Tangible book value1 per share growth of $0.61, or 12.2% annualized, to $20.49 at September 30, 2025 from the second quarter of 2025 Total shareholders' equity to total assets of 11.10%, compared to 9.43% at June 30, 2025; Tangible common equity1 to tangible assets1 of 10.91%, compared to 9.22% at June 30, 2025 Net charge-offs to average loans held for investment of 0.03% Nonperforming assets to total assets of 0.63%; adjusted nonperforming assets to total assets1 of 0.43% Allowance for credit losses ("ACL") on LHFI to total LHFI of 1.16%; ACL on LHFI to nonperforming loans of 127.03% Completed initial public offering of 2,035,000 shares on July 2, 2025 with an initial offering price of $21.50. The Company issued 1,700,000 shares for net proceeds of $30.2 million following discounts, commissions, and expenses Redeemed $15.0 million of subordinated debt; recognized $236 thousand of accelerated debt issuance expense Operating Highlights Net interest income totaled $19.2 million for the third quarter of 2025, an increase of $1.1 million, or 6.2%, from $18.1 million for the second quarter of 2025 and an increase of $2.2 million, or 13.1% from the third quarter of 2024. The Company’s net interest margin expanded to 3.58% for the third quarter of 2025, a 12 basis point increase from the second quarter of 2025 and a 26 basis point increase from the third quarter of 2024. The yield on average interest-earning assets for the third quarter of 2025 increased to 6.14% from 6.08% for the second quarter of 2025. This increase was primarily related to an overall yield increase in all categories except a 2 basis point decrease in yield on LHFI albeit with an increased average volume of approximately $37.2 million in the LHFI portfolio quarter over quarter. The yield on available-for-sale securities was positively impacted by $225 thousand of premium recognized on corporate bonds that were called ahead of maturity. Compared to the third quarter of 2024, yields on earning assets decreased 23 basis points to 6.14% from 6.37%. The decrease was primarily attributable to a 37 basis point decrease in LHFI, a 26 basis point decrease in the yield on the loans held for sale ("LHFS") portfolio, and a net decrease in other earning assets categories. The Company’s total cost of funds was 2.79% for the third quarter of 2025, a decrease of 1 basis point and 45 basis points compared with the second quarter of 2025 and third quarter of 2024, respectively. The cost of funds was impacted by the recognition of a $236 thousand debt issuance costs which were accelerated due to redemption of the Company's subordinated debt. Deposit costs decreased 3 basis points during the third quarter of 2025 to 2.72%, compared to 2.75% in the second quarter of 2025. The cost of interest-bearing deposits decreased 4 basis points during the third quarter of 2025 to 3.23%, compared with 3.27% in the second quarter of 2025, reflecting continued repricing of certificates of deposits in the third quarter of 2025. Noninterest income totaled $2.1 million for the third quarter of 2025, an increase of $305 thousand, or 17.0%, from the second quarter of 2025, primarily attributable to an increase in gain on sale of government guaranteed loans ("GGL"). Noninterest expense totaled $11.9 million for the third quarter of 2025, a decrease of $236 thousand, or 2.0%, from the second quarter of 2025, primarily due to lower other professional fees, offset by a net increase in other noninterest expense categories. The Company’s effective tax rate for the third quarter of 2025 was 23.2%, compared to 15.1% for the second quarter of 2025 and 22.1% for the third quarter of 2024. The increase in effective tax rate from the second quarter of 2025 was primarily due to a higher recognition of renewable energy tax credits in the second quarter of 2025. Balance Sheet Trends Total assets were $2.26 billion at September 30, 2025, an increase of $156.7 million, or 7.5%, from $2.10 billion at December 31, 2024. LHFS were $231.6 million at September 30, 2025, an increase of $57.6 million, or 33.1%, from $174.0 million at December 31, 2024. Gross LHFI were $1.55 billion at September 30, 2025, an increase of $143.5 million, or 10.2%, from $1.41 billion at December 31, 2024. Total deposits were $1.95 billion at September 30, 2025, an increase of $114.9 million, or 6.3%, from $1.83 billion at December 31, 2024. Noninterest-bearing deposits were $313.6 million at September 30, 2025, or 16.1% of total deposits, compared to $302.9 million, or 16.5% of total deposits, at December 31, 2024. Brokered certificates of deposits, a component of time deposits, were $294.9 million at September 30, 2025, as compared to $274.9 million at December 31, 2024, an increase of $20.0 million, or 7.3%. Credit Quality During the third quarter of 2025, the Company recorded a provision (recovery) for credit losses of $653 thousand, compared to $752 thousand and ($1.0) million during the second quarter of 2025 and third quarter of 2024, respectively. The provision expense recorded during the third quarter of 2025 was primarily due to increased loan production and current period net charge-offs, offset by other changes in loss rates and economic factors. The Company's annualized net charge-offs to average LHFI ratio was 0.03% for the third quarter of 2025 as compared to 0.06% and 0.02% during the second quarter of 2025 and third quarter of 2024, respectively. Nonperforming assets totaled $14.2 million, or 0.63% of total assets, at September 30, 2025 compared to $15.9 million, or 0.76% of total assets at December 31, 2024. The $1.7 million decrease in nonperforming assets at September 30, 2025 from December 31, 2024 was due to the sale of other real estate owned and payments collected on nonaccrual loans during the period. Adjusted nonperforming assets2, which excludes the guaranteed portions of nonaccrual loans, was $9.7 million, or 0.43% of total assets, at September 30, 2025 compared to $11.1 million, or 0.53% of total assets, at December 31, 2024. About CoastalSouth Bancshares, Inc. 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. To learn more about Coastal States Bank, visit www.coastalstatesbank.com. Forward-Looking Statements Statements in this press release regarding future events and our expectations and beliefs about our future financial performance and financial condition, as well as trends in our business and markets, constitute "forward-looking statements" within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are not historical in nature and may be identified by references to a future period or periods by the use of the words "believe," "expect," "anticipate," "intend," "plan," "estimate," "project," "outlook," or words of similar meaning, or future or conditional verbs such as "will," "would," "should," "could," or "may." The forward-looking statements in this press release should not be relied on because they are based on current information and on assumptions that we make about future events and circumstances that are subject to a number of known and unknown risks and uncertainties that are often difficult to predict and beyond our control. As a result of those risks and uncertainties, and other factors, our actual financial results in the future could differ, possibly materially, from those expressed in or implied by the forward-looking statements contained in this press release and could cause us to make changes to our future plans. Factors that might cause such differences include, but are not limited to: the impact of current and future economic conditions, particularly those affecting the financial services industry, including the effects of declines in the real estate market, high unemployment rates, inflationary pressures, elevated interest rates and slowdowns in economic growth, as well as the financial stress on borrowers as a result of the foregoing; potential impacts of any adverse developments in the banking industry, including any impacts on customer confidence, deposit outflows, liquidity and the regulatory response thereto; changes in the interest rate environment, including changes to the federal funds rate; changes in prices, values and sales volumes of residential and commercial real estate; competition in our markets that may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income; interest rate fluctuations, which could have an adverse effect on the Company’s profitability; a breach in security of our information systems, including the occurrence of a cyber-attack incidents or a deficiencies in cyber security; risks related to potential acquisitions; government actions or inactions, including a prolonged shutdown of the federal government, tariffs, or trade wards (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), legislation or regulatory changes which could adversely affect the ability of the consolidated Company to conduct business combinations or new operations; changes in tax laws; significant turbulence or a disruption in the capital or financial markets and the effect of a fall in stock market prices on our investment securities; the effects of war or other conflicts, domestic civil unrest and tyranny, and changes in the overall geopolitical landscape; and adverse results from current or future litigation, regulatory examinations or other legal and/or regulatory actions, including as a result of the Company’s participation in and execution of government programs. Therefore, the Company can give no assurance that the results contemplated in the forward-looking statements will be realized. Additional information regarding these and other risks and uncertainties to which our business and future financial performance are subject is contained in the section titled "Cautionary Note Regarding Forward-Looking Statements" and "Risk Factors" in the Company’s final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act of 1933, as amended, filed with the Securities and Exchange Commission (the "SEC") on July 2, 2025 (Registration No. 333-287854), relating to our initial public offering, and in other documents that we file with the SEC from time to time, which are available on the SEC’s website, http://www.sec.gov. In addition, our actual financial results in the future may differ from those currently expected due to additional risks and uncertainties of which we are not currently aware or which we do not currently view as, but in the future may become, material to our business or operating results. Due to these and other possible uncertainties and risks, readers are cautioned not to place undue reliance on the forward-looking statements contained in this press release or to make predictions based solely on historical financial performance. Any forward-looking statement speaks only as of the date on which it is made, and we do not undertake any obligation to update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. All forward-looking statements, express or implied, included in this press release are qualified in their entirety by this cautionary statement. Non-GAAP Financial Measures The measures entitled return on average tangible common equity, tangible book value per share, tangible common equity, tangible assets, adjusted nonperforming assets to total assets, adjusted nonperforming assets, adjusted net income, adjusted basic earnings per share, adjusted diluted earnings per share, pre-tax, pre-provision net revenue, adjusted return on average assets, adjusted return on average equity, efficiency ratio, as adjusted, adjusted return on average tangible common equity, adjusted noninterest income to total revenue, and tangible common equity to tangible assets are not measures recognized under accounting principles generally accepted in the United States of America ("GAAP") and therefore are considered non-GAAP financial measures. The most comparable GAAP measures to these measures are return on average shareholders’ equity, book value per share, total shareholders’ equity, total assets, total nonperforming assets to total assets, total nonperforming assets, net income, basic earnings per share, diluted earnings per share, net income, return on average assets, return on average equity, the efficiency ratio, return on average equity, noninterest income to total revenue, total common equity to total assets, respectively. Management believes that these non-GAAP financial measures and the information they provide are useful to investors since these measures permit investors to view the Company’s performance using the same tools that management uses to evaluate the Company’s past performance and prospects for future performance. While management believes that these non-GAAP financial measures are useful in evaluating our performance, this information should be considered as supplemental and not as a substitute for or superior to the related financial information prepared in accordance with GAAP. Additionally, these non-GAAP financial measures should be considered as additional views of the way the Company’s financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies. View source version on businesswire.com: https://www.businesswire.com/news/home/20251020263268/en/ Contacts Stephen R. Stone President and Chief Executive Officer Anthony P. Valduga Chief Financial Officer / Chief Operating Officer 678-396-4605 [email protected]