Mini programs for calculating carbon footprints for catering businesses are supported by the "China Environmental Protection Foundation Meituan Takeout Qingshan Charity Special Fund" and Deloitte China conducts technology development. Merchants can use Mini programs for free to calculate their own operations and upstream and downstream carbon emissions, and quantify the emission reduction benefits and expected payback periods of different emission reduction measures. Simultaneous Mini programs were launched, and Meituan also joined forces with all parties to release the "Research Report on Low-Carbon Action Guidelines for Catering Merchants" to provide three-phase action guidelines for Catering Merchants 'low-carbon actions.