Group 1 - The company, Shanda Electric Power (301609), has two main business segments: smart grid monitoring and renewable energy [1] - Zeyu Intelligent (301179) and Jingwei Co., Ltd. (301390) focus on power consulting design, system integration, and power engineering construction, indicating a diversified industry landscape [1] - Yinghantong is identified as an IoT technology company, and there is no competitive relationship with Shanda Electric Power [1]