FOR IMMEDIATE RELEASE

CONTACTS:

LARA E. RAMSEY, PRESIDENT & CEO

(540) 951-6250 lramsey@nbbank.com

LORA JONES, TREASURER & CFO

(540) 951-6238 ljones@nbbank.com

NATIONAL BANKSHARES, INC. DECLARES SEMI-ANNUAL DIVIDEND

BLACKSBURG, VA, MAY 13, 2026: The Board of Directors of National Bankshares, Inc. (NASDAQ Capital Market: NKSH) today approved payment on June 1, 2026 of a semi-annual dividend of $0.75 per share to all stockholders of record as of May 26, 2026. President & CEO Lara E. Ramsey commented, “Our Company reported solid earnings growth in 2025 and the first quarter of 2026, and we are pleased to share that success through this dividend payment. As we celebrate our bank’s 135th anniversary and look forward with a focus on sustainable growth, we would like to thank the customers, communities, and shareholders who have supported us along the way.”

In other business, the Board renewed its authorization of a stock repurchase plan under which management is authorized to purchase up to 250,000 shares of National Bankshares, Inc.’s common stock in the open market. The authorization extends from June 1, 2026 to May 31, 2027. The Company’s current stock repurchase plan expires on May 31, 2026. The Company’s management has not yet determined how many shares, if any, might be purchased under the continued stock repurchase plan.

About National Bankshares

National Bankshares, Inc., headquartered in Blacksburg, Virginia, is the parent company of The National Bank of Blacksburg, which does business as National Bank, and of National Bankshares Financial Services, Inc. National Bank is a community bank operating from 28 full-service offices in Southwestern, Western and Central Virginia, and one loan production office in Charlottesville, Virginia. National Bankshares Financial Services, Inc. is an investment and insurance subsidiary in the same trade area. The Company’s stock is traded on the Nasdaq Capital Market under the symbol “NKSH.” Additional information is available at www.nationalbankshares.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, forward-looking statements can be identified by use of words such as “may,” “will,” “anticipates,” “believes,” “expects,” “plans,” “estimates,” “potential,” “continue,” “should,” and similar words or phrases. These statements are based upon current and anticipated economic conditions, nationally and in the Company’s market, interest rates and interest rate policy, competitive factors, and other conditions which by their nature, are not susceptible to accurate forecast and are subject to significant uncertainty. Although we believe that our expectations with respect to forward-looking statements are based upon reasonable assumptions within the bounds of our existing knowledge of our business and operations, there can be no assurance that actual future results, performance, achievements, or trends will not differ materially from any projected future results, performance, achievements or trends expressed or implied by such forward-looking statements. Actual future results, performance, achievements or trends may differ materially from historical results or those anticipated depending on a variety of factors, including, but not limited to, the following: the level of inflation; interest rates; national and local economic conditions; monetary and fiscal policies of the U.S. Government, including policies of the U.S. Treasury, the Office of the Comptroller of the Currency, the Board of Governors of the Federal Reserve System, the Consumer Financial Protection Bureau and the Federal Deposit Insurance Corporation, and the impact of any policies or programs implemented pursuant to financial reform legislation; unanticipated increases in the level of unemployment in the Company’s market; the quality or composition of the loan and/or investment portfolios; the sufficiency of the Company’s allowance for credit losses; demand for loan products; deposit flows, including impact on liquidity; competition; demand for financial services in the Company’s market; the real estate market conditions in the Company’s market; laws, regulations and policies impacting financial institutions; adverse developments in the financial industry generally, such as the recent bank failures, responsive measures to mitigate and manage such developments,

related supervisory and regulatory actions and costs, and related impacts on customer behavior; technological risks and developments, and cyber-threats, attacks or events; the Company’s technology initiatives; geopolitical conditions, including acts or threats of terrorism and/or military conflicts, or actions taken by the U.S. or other governments in response to acts or threats of terrorism and/or military conflicts; the occurrence of significant natural disasters, including severe weather conditions, floods, and other catastrophic events; the Company's ability to identify, attract, and retain experienced management, relationship managers, and support personnel, particularly in a competitive labor environment; performance by the Company’s counterparties or vendors; applicable accounting principles, policies and guidelines; the impact of public health events, including the adverse impact on our business and operations and on our customers; and other factors described from time to time in the Company’s reports (such as our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K) filed with the Securities and Exchange Commission. These risks and uncertainties should be considered in evaluating forward-looking statements and undue reliance should not be placed on such statements. The Company does not undertake, and specifically disclaims any obligation, to publicly release the result of any revisions which may be made to any forward-looking statements to reflect events or circumstances after the date of such statements or to reflect the occurrence of anticipated or unanticipated events.