[3-connected board Huamai Technology: Although the price of optical cable products has increased recently, the price increase is not sustainable due to multiple factors] On September 9th, Huamai Technology (603042.SH) announced that the company's stock closed at the daily limit price of 18.67 yuan per share on September 9, 2026, an increase of 42.52% from the closing price on August 7. There may be overheating of market sentiment, irrational speculation and downside risks. According to the company's self-examination, the optical fiber concept has attracted high market attention since 2026; the recent implementation of the "15th Five-Year Plan for the Development of the Information and Communications Industry" has attracted relatively high attention in the communications industry. The company's main business is wireless communication networks and traditional optical communication products. Its current business focuses on the construction of operator networks and communication infrastructure, with a relatively small share of revenue in data centers and computing power-related fields. At the same time, although the price of optical cable products has increased recently, the price increase is affected by multiple factors such as industry supply and demand, raw materials, and market competition. The price increase is not sustainable, and there is a risk of subsequent price falls, and the impact on the company's future performance is uncertain.