ZTO Upsizes and Extends Share Repurchase Program

SHANGHAI,March 31,2021 -- ZTO Express (Cayman) Inc. (NYSE: ZTO and HKEX: 2057),a leading and fast-growing express delivery company in China ("ZTO" or the "Company"),today announced that its board of directors has approved changes to the Company's share repurchase program launched in November 2018 (the "Share Repurchase Program"),increasing the aggregate value of shares that may be repurchased fromUS$500 milliontoUS$1 billion and extending the effective time by two years through June 30,2023.

The Company's proposed repurchases may be made from time to time on the open market at prevailing market prices,in privately negotiated transactions,in block trades and/or through other legally permissible means,depending on market conditions and in accordance with applicable rules and regulations. The Company's board of directors will review the Share Repurchase Program periodically,and may authorize adjustment of its terms and size.

About ZTO Express (Cayman) Inc.

ZTO is a leading and fast-growing express delivery company in China. ZTO provides express delivery service as well as other value-added logistics services through its extensive and reliable nationwide network coverage in China.

ZTO operates a highly scalable network partner model,which the Company believes is best suited to support the significant growth of e-commerce in China. The Company leverages its network partners to provide pickup and last-mile delivery services,while controlling the mission-critical line-haul transportation and sorting network within the express delivery service value chain.

For more information,please visit http://zto.investorroom.com.

Safe Harbor Statement

This press release contains statements that may constitute "forward-looking" statements pursuant to the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "aims," "future," "intends," "plans," "believes," "estimates," "likely to," and similar statements. Statements that are not historical facts,including statements about ZTO's beliefs,plans,and expectations,are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. Further information regarding these and other risks is included in ZTO's filings with the SEC. All information provided in this press release is as of the date of this press release,and ZTO does not undertake any obligation to update any forward-looking statement,except as required under applicable law.