Announcement on the Progress of the "Quality and Return Double Improvement" Action Plan

Securities Code: 002429 Securities Abbreviation: Topband Announcement No.: 2026-030 Shenzhen Topband Co., Ltd. Announcement on the Progress of the "Quality and Return Double Improvement" Action Plan The Company and all members of the Board of Directors guarantee the truthfulness, accuracy, and completeness of the information disclosed, and are free from any false records, misleading statements, or material omissions. Shenzhen Topband Co., Ltd. (hereinafter referred to as the "Company"), in line with the development concept of a listed company "putting investors first" and to effectively protect the interests of all shareholders, has formulated the "Quality and Return Double Improvement" action plan based on its firm confidence in future development prospects and full recognition of its intrinsic value. In conjunction with the implementation, the Company has disclosed the progress announcement of the "Quality and Return Double Improvement" action plan. For details, please refer to the "Announcement on the 'Quality and Return Double Improvement' Action Plan" and the "Announcement on the Progress of the 'Quality and Return Double Improvement' Action Plan" disclosed on the Juchao Information Network on September 5, 2024, and April 17, 2025. The progress of the action plan is hereby reported as follows: I. Focusing on the Core Business of Optical Technology, Continuously Improving Operational Quality The Company focuses on its three core business segments: smart display, LED full industry chain, and optical communication, continuously optimizing resource allocation, strengthening industrial synergy, and promoting steady improvement in the Company's operational quality. In terms of smart display business, the Company closely follows industry technology iteration trends, continuously promotes the application of new display technologies such as Mini LED backlighting, optimizes product structure, steadily increases the proportion of high-value-added products, and comprehensively enhances core market competitiveness. In terms of LED full industry chain business, the Company leverages its vertically integrated layout advantages to strengthen synergy from chip, packaging to terminal applications, accelerate the commercialization of Mini/Micro LED technology, and continuously impro