ZTO Express (NYSE: ZTO) submits Form 6-K with Next Day Disclosure

Rhea-AI Filing Summary

ZTO Express (Cayman) Inc. submitted a Form 6-K as a foreign private issuer for the month of September 2025. The report identifies the company’s principal executive offices in Shanghai and confirms it files annual reports under Form 20-F. The filing primarily furnishes Exhibit 99.1, a Next Day Disclosure Return dated September 25, 2025, signed on behalf of the company by Chief Financial Officer Huiping Yan.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2025

Commission File Number: 001-37922

ZTO Express (Cayman) Inc.

Building One, No. 1685 Huazhi Road

Qingpu District

Shanghai, 201708

People's Republic of China

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  x    Form 40-F  ¨

Exhibit Index

Exhibit 99.1 – Next Day Disclosure Return dated September 25, 2025

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ZTO Express (Cayman) Inc.
	By	:	/s/ Huiping Yan
	Name	:	Huiping Yan
	Title	:	Chief Financial Officer

Date: September 25, 2025

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FAQ

What did ZTO (ZTO) file in its September 2025 Form 6-K?

ZTO Express (Cayman) Inc. filed a Form 6-K for September 2025 that primarily furnishes Exhibit 99.1, a Next Day Disclosure Return dated September 25, 2025, signed by Chief Financial Officer Huiping Yan.

Which annual report form does ZTO (ZTO) use as a foreign issuer?

ZTO Express (Cayman) Inc. indicates in this report that it files its annual reports under cover of Form 20-F, the format commonly used by foreign private issuers for comprehensive yearly financial and business disclosures.

Who signed ZTO’s (ZTO) September 2025 Form 6-K?

The September 2025 Form 6-K for ZTO Express (Cayman) Inc. was signed on behalf of the company by Huiping Yan, who is identified in the document as the Chief Financial Officer and an authorized representative.

What exhibit is included with ZTO’s (ZTO) September 2025 Form 6-K?

The Form 6-K includes an exhibit index listing Exhibit 99.1 as a Next Day Disclosure Return dated September 25, 2025. This exhibit is the primary attachment furnished together with the short Form 6-K cover information.

Where are ZTO’s (ZTO) principal executive offices located?

ZTO Express (Cayman) Inc. lists its principal executive offices at Building One, No. 1685 Huazhi Road, Qingpu District, Shanghai, 201708, People’s Republic of China, providing investors a clear indication of the company’s main operational base.