![]() | John T. Boyd Company Mining and Geological Consultants | ||||
Chairman James W. Boyd President and CEO John T. Boyd II Managing Director and COO Ronald L. Lewis Vice Presidents Robert J. Farmer John L. Weiss Michael F. Wick William P. Wolf Managing Director - Australia Jacques G. Steenkamp Managing Director - China Jisheng (Jason) Han Managing Director – South America Carlos F. Barrera Managing Director – Metals Gregory B. Sparks Pittsburgh 4000 Town Center Boulevard, Suite 300 Canonsburg, PA 15317 (724) 873-4400 (724) 873-4401 Fax jtboydp@jtboyd.com Denver (303) 293-8988 jtboydd@jtboyd.com Brisbane 61 7 3232-5000 jtboydau@jtboyd.com Beijing 86 10 6500-5854 jtboydcn@jtboyd.com Bogota +57-3115382113 jtboydcol@jtboyd.com www.jtboyd.com | February 24, 2023 File: 3076.017 Subject: CONSENT OF THIRD-PARTY QUALIFIED PERSON Ladies and Gentlemen: The John T. Boyd Company (“BOYD”) in connection with the filing of the U.S. Silica Holdings, Inc. Annual Report on Form 10-K for the fiscal year ended December 31, 2022 and any amendments or supplements and/or exhibits thereto (collectively, the “Form 10-K”), consent to: •the filing and use of the technical report summary titled “Technical Report Summary, Silica Sand Resources and Reserves, Ottawa Operation, LaSalle County, Illinois” (the “Ottawa Technical Report”), with an effective date of December 31, 2022, as an exhibit to and referenced in the Form 10-K; •the filing and use of the technical report summary titled “Technical Report Summary, Proppant Sand Resources and Reserves, Lamesa Operation, Dawson County, Texas” (the “Lamesa Technical Report”), with an effective date of December 31, 2022, as an exhibit to and referenced in the Form 10-K; •the filing and use of the technical report summary titled “Technical Report Summary, Proppant Sand Resources and Reserves, Crane Operation, Crane County, Texas” (the “Crane Technical Report”), with an effective date of December 31, 2022, as an exhibit to and referenced in the Form 10-K; •the filing and use of the technical report summary titled “Technical Report Summary, Diatomaceous Earth Resources and Reserves, Colado Operation, Pershing County, Nevada” (the “Colado Technical Report” and together with the Ottawa Technical Report, Lamesa Technical Report, and Crane Technical Report, the “Technical Reports”), with an effective date of December 31, 2022, as an exhibit to and referenced in the Form 10-K; | ||||