X0202 SCHEDULE 13G/A 0001193125-17-045624 0001687132 XXXXXXXX LIVE 8 Common Stock, $0.001 par value per share 06/30/2026 0001529628 Smart Sand, Inc. 83191H107 1000 FLORAL VALE BOULEVARD YARDLEY PA 19067 Rule 13d-1(d) YOUNG CHARLES EDWIN X1 7357733.00 0.00 7357733.00 0.00 7357733.00 17.3 IN The percentages used in this Schedule 13G/A are calculated based upon the 42,494,871 shares of common stock, par value $0.001 per share ("Common Stock"), of Smart Sand, Inc. (the "Company") issued and outstanding as of June 30, 2026, which information was provided by the Issuer to the Reporting Person. As of June 30, 2026, Charles E. Young owned approximately 67% of the membership interests Keystone Cranberry, LLC and is the sole managing member of Keystone Cranberry, LLC, and has sole voting and investment power over the 5,842,700 shares held by Keystone Cranberry, LLC. Mr. Young disclaims beneficial ownership of the shares held by Keystone Cranberry, LLC except to the extent of his pecuniary interest therein. Also includes (i) 1,184,664 shares held directly by Mr. Young and (ii) 330,369 restricted shares issued under the Issuer's 2016 Ombnibus Incentive Plan ("2016 Plan") to Mr. Young that are subject to time vesting requirements. Does not include 500,879 restricted shares issued to Mr. Young under the 2016 Plan that are subject to performance-based vesting requirements. KEYSTONE CRANBERRY, LLC PA 0.00 5842700.00 0.00 5842700.00 5842700.00 13.7 OO The percentages used in this Schedule 13G/A are calculated based upon the 42,494,871 shares of Common Stock of the Company issued and outstanding as of June 30, 2026, which information was provided by the Issuer to the Reporting Person. As of June 30, 2026, Charles E. Young owned approximately 67% of the membership interests Keystone Cranberry, LLC and is the sole managing member of Keystone Cranberry, LLC, and has sole voting and investment power over the shares held by Keystone Cranberry, LLC. Smart Sand, Inc. 1000 FLORAL VALE BOULEVARD, YARDLEY, PENNSYLVANIA, 19067. Keystone Cranberry, LLC, a Pennsylvania limited liability company Charles E. Young Principal business office for Keystone Cranberry, LLC and Charles E Young: c/o Smart Sand, Inc. 1000 Floral Vale Boulevard, Suite 225 Yardley, PA 19067 Keystone Cranberry, LLC - Pennsylvania Charles E. Young - United States Y Keystone Cranberry, LLC - 5,842,700 Charles E. Young - 7,357,733 Keystone Cranberry, LLC - 13.7% Charles E. Young - 17.3% Keystone Cranberry, LLC - None Charles E. Young - 7,357,733 Keystone Cranberry, LLC - 5,842,700 Charles E. Young - None Keystone Cranberry, LLC - None Charles E. Young - 7,357,733 Keystone Cranberry, LLC - 5,842,700 Charles E. Young - None Y Y Y Y Y Y YOUNG CHARLES EDWIN /s/ Charles E. Young 08/13/2026 KEYSTONE CRANBERRY, LLC /s/ Charles E. Young 08/13/2026