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Exhibit 99.1 ZTO Reports Second Quarter 2021 Unaudited Financial Results Adjusted Net Income Reached RMB1.27 Billion 5.8 Billion Parcels Attained 21.0 % Market Share SHANGHAI , Aug. 18 , 2021 / PRNewswire / - ZTO Express ( Cayman ) Inc. ( NYSE : ZTO and SEHK : 2057 ) , a leading and fast - growing express delivery company in China ( " ZTO " or the " Company " ) , today announced its unaudited financial results for the second quarter ended June 30 , 2021 [ 1 ] . The Company delivered a parcel volume growth of 25.6 % while maintaining high quality of service and customer satisfaction . Adjusted net income reached RMB1,272.2 million . Cash generated from operating activities was RMB1,932.4 million . Second Quarter 2021 Financial Highlights • Revenues were RMB7,325.1 million ( US $ 1,134.5 million ) , an increase of 14.4 % from RMB6,402.4 million in the same period of 2020 . Gross profit was RMB1,673.6 million ( US $ 259.2 million ) , a decrease of 5.4 % from RMB1,769.2 million in the same period of 2020 . Net income was RMB1,272.2 million ( US $ 197.0 million ) , a decrease of 12.5 % from RMB1,453.6 million in the same period of 2020 . Adjusted EBITDA [ 2 ] . was RMB2,125.7 million ( US $ 329.2 million ) , a decrease of 2.8 % from RMB2,187.0 million in the same period of 2020 . Adjusted net income [ 3 ] was RMB1,272.2 million ( US $ 197.0 million ) , a decrease of 12.5 % from RMB1,453.6 million in the same period of 2020 . Basic and diluted net earnings per American depositary share ( " ADS ” [ 4 ] ) were RMB1.56 ( US $ 0.24 ) , a decrease of 15.7 % from RMB1.85 in the same period of 2020 . Adjusted basic and diluted net earnings per American depositary share [ 5 ] attributable to ordinary shareholders were RMB1.56 ( US $ 0.24 ) , a decrease of 15.7 % from RMB1.85 in the same period of 2020 . Net cash provided by operating activities was RMB1,932.4 million ( US $ 299.3 million ) , compared with RMB1,252.3 million in the same period of 2020 . Operational Highlights for Second Quarter 2021 Parcel volume was 5,772 million , an increase of 25.6 % from 4,595 million in the same period of 2020 . Number of pickup / delivery outlets was over 30,100 as of June 30 , 2021 . Number of direct network partners was over 5,450 as of June 30 , 2021 . Number of line - haul vehicles was approximately 10,300 as of June 30 , 2021 , which included approximately 10,100 self - owned vehicles and approximately 200 vehicles owned and operated by Tonglu Tongze Logistics Ltd. , a transportation operator that works exclusively for ZTO . Out of the approximately 10,100 self - owned trucks , approximately 8,150 were high capacity 15 to 17 - meter - long models as of June 30 , 2021 , compared to over 8,100 as of March 31 , 2021 . Number of line - haul routes between sorting hubs was approximately 3,600 as of June 30 , 2021 , compared to over 3,650 as of March 31 , 2021 . Number of sorting hubs was 96 as of June 30 , 2021 , among which 85 are operated by the Company and 11 by the Company's network partners . ( 1 ) ( 2 ) An investor relations presentation accompanies this earnings release and can be found at http://zto.investorroom.com . Adjusted EBITDA is a non - GAAP financial measure , which is defined as net income before depreciation , amortization , interest expenses and income tax expenses , and further adjusted to exclude the shared - based compensation expense and non - recurring items such as the gain on disposal of equity investment and subsidiary which management aims to better represent the underlying business operations . ( 3 ) Adjusted net income is a non - GAAP financial measure , which is defined as net income before share - based compensation expense and non- recurring items such as gain on disposal of equity investment and subsidiary in which management aims to better represent the underlying business operations . ( 4 ) ( 5 ) One ADS represents one Class A ordinary share . Adjusted basic and diluted earnings per American depositary share attributable to ordinary shareholders is a non - GAAP financial measure . It is defined as adjusted net income attributable to ordinary shareholders divided by weighted average number of basic and diluted shares , respectively . 1