Group 1 - The notice emphasizes the obligation of electricity sales companies to inform retail users accurately about policy rules and market information [1] - It prohibits unfair pricing practices and the signing of contracts that harm user interests, such as shadow contracts with power generation companies [1] - The notice mandates that sales companies provide quality services to users, optimize energy usage plans, and reduce energy costs [1] Group 2 - The notice requires State Grid Shaanxi Electric Power Company to enhance its four-level service system, focusing on small users with low electricity consumption [2] - It highlights the importance of policy promotion and market information dissemination to ensure users receive comprehensive services [2]