Gelonghui, Feb. 27 | Zhongwei Electronics (300270.SZ) fell more than 9% to 7.52 yuan, with a total market capitalization of 2,277 billion yuan; in 8 trading days from February 8 to February 26, the stock surged nearly 137%. Zhongwei Electronics announced serious abnormal fluctuations in stock trading yesterday evening. The current core technology and products of the company and its subsidiaries do not involve humanoid robot technology and products, nor have they recently engaged in technical research and business layout related to humanoid robots. Inspection robots produced by the company's subsidiaries fall into the category of special robots. Their main customers are coal mines and tunnels. Their business revenue accounts for a small share of listed companies' consolidated statements, and has been in a state of loss for the past three years. Limited by relevant industry policies and market demand, their business scale is not expected to change significantly in the near future, which will have little impact on the overall performance of listed companies.