SHANGHAI, Jan. 11, 2021 /PRNewswire/ — On January 12, 2021 local time, ZTO Express (Cayman) Inc. (NYSE: ZTO; HKEX: 2057) (“ZTO” or the “Company”), a leading and fast-growing express delivery company in China, held its 2020 year-end network partner convention in Qingpu, Shanghai, where…