Zheng Quan Shi Bao Wang·2025-10-10 04:32Core Viewpoint - The Ministry of Commerce and the General Administration of Customs have jointly announced export controls on superhard materials and related items, which may significantly impact domestic producers and overseas downstream customers [2]. Group 1: Export Controls - The export controls include superhard materials such as synthetic diamond powders with an average particle size of less than or equal to 50μm, synthetic diamond single crystals with an average particle size between 50μm and 500μm, and related equipment and technologies [2]. - This announcement expands the scope of previous export controls issued on August 15, 2024, which included certain antimony and superhard material items [2]. Group 2: Industry Significance - Superhard materials, particularly diamonds, are essential in high-end manufacturing and strategic industries, solving complex processing challenges in sectors like aerospace, defense, and electronics [3]. - The potential growth point in the superhard materials industry is functional diamonds for semiconductor applications, with significant market demand anticipated if breakthroughs in diamond substrate technology occur [3]. Group 3: Market Response - On October 10, 2023, A-share superhard material stocks surged, with notable increases such as Sifangda rising by 12.29% and Huanghe Xuanfeng hitting the daily limit [5]. - Several listed companies have disclosed their investments in functional diamond applications, indicating a strong market interest and potential for growth in this sector [7]. Group 4: Company Developments - Guojijiangong has made progress in the MPCVD synthetic diamond sector, achieving small-scale sales of diamond heat sinks and optical window pieces [7]. - Sifangda is working on a project to produce high-quality large-size ultra-pure CVD diamonds, while Huanghe Xuanfeng has developed polycrystalline diamond heat sink pieces with competitive thermal performance [7]. - Statistics show that since July, several superhard material stocks have attracted significant net purchases from leveraged funds, indicating strong investor interest [7][8].