Group 1 - The event "Science and Technology Innovation Hainan" expert service team seminar and the unveiling ceremony of the China Environmental Science Society service station was held in Haikou on September 15 [1] - The activity aims to implement the national "waste-free city" pilot and the province's "waste-free island" construction requirements, promoting the comprehensive management of industrial solid waste [1] - The seminar focused on the comprehensive management and institutional norms of industrial solid waste (including hazardous waste), facilitating direct communication between enterprise representatives and expert teams [1] Group 2 - The expert service team provided practical solutions for enterprises regarding solid waste management during the on-site consultation [1] - The event also included the awarding ceremony for the "Ecological Environment Technology Service Station" and "Enterprise Science and Technology Association" plaques by the Hainan Provincial Environmental Science Society [1]