Additional Proxy Soliciting Materials (Form DEFA14A)

NAME & ADDRESS HERE PLEASE DETACH ALONG PERFORATED LINE AND MAIL IN THE ENVELOPE PROVIDED. NAME & ADDRESS HERE CONTROL NUMBER Address Change: (If you noted any Address Changes above, please mark box.) ☐ CS DISCO, INC. 2026 ANNUAL MEETING OF STOCKHOLDERS June 10, 2026 at 9:00 a.m. Central Time THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF CS DISCO, INC. The stockholder(s) hereby appoint(s)Eric Friedrichson and Susan Garcia, or any of them, as proxies, each with the power to appoint his or her substitute, and hereby authorize(s) them to represent and to vote, as designated on the reverse side of this ballot, all of the shares of common stock of American Resources Corporation that the stockholder(s) is/are entitled to vote at the Annual Meeting of Stockholders to be held at 9:00 a.m. CDT on June 10, 2026, and any adjournment or postponement thereof. The Annual Meeting of Stockholders will be held virtually. In order to attend the meeting, you must register at http://viewproxy.com/LAW/2026 by 5:00 p.m. CDT on June 9, 2026. On the day of the Annual Meeting of Stockholders, if you have properly registered, you may enter the meeting by clicking on the link provided and entering the password you received via email in your registration confirmations. Further instructions on how to attend and vote at the Annual Meeting of Stockholders are contained in the Proxy Statement in the sections titled "QUESTIONS AND ANSWERS ABOUT THESE PROXY MATERIAL AND VOTING." PROXY VOTING INSTRUCTIONS Please have your 11-digit control number ready when voting by Internet or Telephone. Vote Your Proxy on the Internet: Go to https://FCRvote.com/LAW Have your proxy card available when you access the above website. Follow the prompts to vote your shares. Vote Your Proxy by Phone: Call 1-866-402-3905 Use any touch-tone telephone to vote your proxy. Have your proxy card available when you call. Follow the voting instructions to vote your shares. Vote Your Proxy by Mail: Mark, sign, and date your proxy card, then detach it, and return it in the postage-paid envelope provided. CONTROL NUMBER As a stockholder of CS Disco, Inc., you have the option of voting your shares electronically through the Internet or by telephone, eliminating the need to return the proxy card. Your electronic or telephonic vote authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated, and returned the proxy card. Votes submitted electronically over the Internet or by telephone must be received by 9:00 p.m., Central Time, on June 10, 2026. This proxy, when properly executed, will be voted in the manner directed herein. If no such direction is made, this proxy will be voted in accordance with the Board of Directors' recommendations. Signature____________________________________________________________ Date________________________________________________________________ Title_________________________________________________________________ Signature (Joint Owners)_____________________________________________ NOTE: Please sign exactly as name(s) appear(s) hereon. When signing as attorney, executor, administrator or other fiduciary, please give full title as such. Joint owners should each sign personally. If a corporation, limited liability company or partnership, please sign in full corporate, limited liability company, or partnership name by authorized officer or person. PROXY VOTING INSTRUCTIONS Please have your 11-digit control number ready when voting by Internet or telephone. Vote Your Proxy on the Internet: Go to https://FCRvote.com/LAW Have your proxy card available when you access the above website. Follow the prompts to vote your shares. Vote Your Proxy by Phone: Call 1-866-402-3905 Use any touch-tone telephone to vote your proxy. Have your proxy card available when you call. Follow the voting instructions to vote your shares. Vote Your Proxy by Mail: Mark, sign, and date your proxy card, then detach it, an return it in the postage-paid envelope provided. As a stockholder of CS Disco, Inc., you have the option of voting your shares electronically through the Internet or by telephone, eliminating the ne to retur the proxy card. Your electronic or telephonic vote authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated, and returned the proxy card. Votes submitted electronically over the Internet or by telephone must be received by 9:00 a.m., Central Time, on June 10, 2026. PLEASE DETACH ALONG PERFORATED LINE AND MAIL IN THE ENVELOPE PROVIDED.t t CS DISCO, INC. 2026 ANNUAL MEETING OF STOCKH LDERS JUNE 10, 2026 AT 9:00 A.M. CENTRAL TIME THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF CS DISCO, INC. The stockholder(s) hereby appoint(s) Eric Friedrichson and Susan Garcia, or each of them, as proxies, each with the power to appoint is or h r substitute, and hereby authorize(s) th m to repres nt and to vote, as designated n the reverse side of this ballot, all of the shares of common stock f CS Disc , Inc. that the stockholder(s) is/are entitled to vote at the Annual Mee ing of Stockholder to be held at 9:00 a.m. CDT on June 10, 2026, virtually at https://web.viewproxy.com/LAW/2026, and any adjournment or postponement thereof (with discretionary authority under Proposal 1 to vote for a substitute nominee if any nominee is not able to serve or for good cause will not serve) and in their discretion on such other matters as may properly come before the Annual Meeting. This proxy, when properly executed, will be voted in the manner directed herein. If no such direction is made, this proxy will be voted in accordance with the Board of Directors' recommendations. It will be voted in the discretion of the proxies upon such other business as may properly come before the Annual Meeting. Signature_____________________________________________________ Date_________________________________________________________ Title__________________________________________________________ Signature (Joint Owners)______________________________________ NOTE: Please sign exactly as name(s) appear(s) hereon. When signing as attorney, executor, administrator or other fiduciary, please give full title as such. Joint owners should each sign personally. If a corporation, limited liability company or partnership, please sign in full corporate, limited liability company, or partnership name by authorized officer or person. Address Change: (If you noted any Address Changes above, please mark box.) o CONTROL NUMBER CONTROL NUMBER

The Board of Directors recommends a vote FOR Proposal 2. Proposal 2: Ratification of selection by the audit committee of our board of directors of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2026. FORoAGAINSToABSTAIN o The Board of Directors recommends a vote FOR each of the nominees listed in Proposal 1. Proposal 1: Election of our two nominees for Class II director, James Offerdahl and Toby Williams, each to hold office until our Annual Meeting of Stockholders in 2029 and until the director's successor has been duly elected and qualified or until the director's earlier death, resignation or removal. Please mark your votes like this  ELECTION OF DIRECTORS: FOR WITHHOLD (1) James Offerdahl o o (2) Toby Williams o o When properly executed, your proxy card/voting instruction form will be voted in the manner you direct. If you do not specify your choices, your shares will be voted FOR each of the nominees listed in Proposal 1, and FOR Proposal 2. PLEASE DETACH ALONG PERFORATED LINE AND MAIL IN THE ENVELOPE PROVIDED.t t Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Stockholders to be held on June 10, 2026: The Notice, Proxy Statement and Annual Report are available at: https://web.viewproxy.com/LAW/2026