On July 4, 2024, dianguang explosion-proof technology (002730.SZ) accepted a specific investigation, regarding whether the market share of coal mine supporting explosion-proof switch products will continue to rise in the next few years and whether the product gross margin can be maintained. The company replied that the company's current market share of mining explosion-proof switches ranks among the top, and it is expected that the market for mining explosion-proof switches will be relatively stable in the next few years. The company requires steady development of this business. In the future, the development speed of the permanent magnet motor sector will be faster. Considering the proportion of permanent magnet motors in the entire motor market, the energy-saving advantages of permanent magnet motors, and the wide range of applicable industries of permanent magnet motors, the development potential of the permanent magnet motor business will continue to increase. The company's gross margin is relatively stable and has further increased in the past few quarters, mainly because the company has optimized the overall product structure, with more high value-added products. In the long run, the overall gross margin of the company should not show significant fluctuations.