Group 1 - The carbon trading forum held in Shenzhen focuses on market-oriented approaches to carbon emission rights trading and green development opportunities [1] - A strategic cooperation agreement was signed between Shenzhen Ecological Environment Bureau and the National Petroleum and Natural Gas Pipeline Group's research institute to enhance methane emission control in the oil and gas sector [1] - Shenzhen Ecological Environment Bureau released two trial methodologies for carbon benefits related to second-hand electronic products and carpooling, promoting quantifiable and tradable green living [1] Group 2 - Shenzhen Green Exchange signed a green technology trading cooperation agreement with Green Technology (Shanghai) and the Belt and Road Environmental Technology Exchange and Transfer Center [2] - Over 20 green technology projects from Shenzhen Energy have been registered, establishing an efficient platform for technology supply and demand [2]