香港恒生指数开盘涨0.57%，恒生科技指数涨0.74%，优必选高开6.38%

Group 1 - The Hong Kong Hang Seng Index opened with a gain of 0.57% on September 4, while the Hang Seng Tech Index rose by 0.74% [1] - UBTECH experienced a significant increase of 6.38% in its stock price following the announcement of a procurement contract worth 250 million yuan for humanoid robot products and solutions from a well-known domestic company [1]