Texxon Holding Ltd

Proxy Statement is available at www.proxyvote.com. V96414-P53319 TEXXON HOLDING LIMITED ANNUAL GENERAL MEETING OF SHAREHOLDERS MAY 22, 2026; TIME: 9:00 AM BEIJING TIME (9:00 PM ET. ON MAY 21, 2026) THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The shareholder(s) hereby appoint(s) Hui Xu and Bo Ren, or either of them, as proxies, each with the power to appoint (his/her) substitute, and hereby authorize(s) them to represent and to vote, as designated on the reverse side of this ballot, all of the ordinary shares of TEXXON HOLDING LIMITED that the shareholder(s) is/are entitled to vote at the Annual General Meeting of Shareholders to be held virtually at www.virtualshareholdermeeting.com/NPT2026 at 9:00 AM Beijing Time, on May 22, 2026 (9:00 PM ET. on May 21, 2026), and any adjournment or postponement thereof. 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. Continued and to be signed on reverse side