Smart Sand, Inc. entered into a written trading plan under Rule 10b5-1 of the Securities Exchange Act of 1934 on March 3, 2026. This plan facilitates the company's previously announced share repurchase programs, as detailed in its 2025 Annual Report on Form 10-K and a Current Report on Form 8-K, both filed on February 27, 2026. The trading plan permits purchases up to a total amount of $2.5 million of shares, including commissions. The number of shares purchased daily will not exceed the maximum daily target volume allowable under Rule 10b-18 of the Exchange Act. Trades under the plan will commence no earlier than March 16, 2026, and will conclude upon the earlier of the full utilization of the $2.5 million or the close of business on May 11, 2026. The 10b5-1 plan allows repurchases during periods that might otherwise be restricted by self-imposed trading blackouts or insider trading laws. A selected broker will execute repurchases on the company's behalf, but neither the company nor the broker is obligated to purchase a specific number of shares or at any specific time. Smart Sand may implement subsequent 10b5-1 plans after the current one expires to continue its share repurchase program.