ST汇洲：控股子公司热热数据为部分互联网头部企业提供数据采集和标注服务，但该服务对公司营收贡献很小

Group 1 - The company ST Huizhou's subsidiary, Hot Data, provides data collection and annotation services to leading internet companies, but this service contributes minimally to the company's revenue [2] - The revenue from the "large model data service" business accounted for only 7.92% of the company's total revenue in the first three quarters of 2025 [2]