JIADE Ltd — Interim / Quarterly Report 2025

Dec 17, 2025

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 December 2025

Commission File Number: 001-42098

JIADE LIMITED

18/F, Block D, Huirong Plaza, No. 88, Section 3, Jinhua Road

Jinjiang District, Chengdu City, Sichuan Province

The People’s Republic of China

(Address of principal executive office)

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 ☒ Form 40-F ☐

Explanatory Note

JIADE LIMITED, a Cayman Islands exempted company (the “Company”), is furnishing its unaudited financial statements and notes for the six months ended June 30, 2025. The financial statements and notes are attached as Exhibit 99.1 to this report. Management’s Discussion and Analysis of Financial Condition and Results of Operations for the six months ended June 30, 2025 is attached as Exhibit 99.2 to this report.

Exhibit Index

Exhibit No.	Description
99.1	Unaudited Condensed Consolidated Financial Statements and Notes of JIADE LIMITED for the Six Months Ended June 30, 2025 and 2024
99.2	Management’s Discussion and Analysis of Financial Condition and Results of Operations
101. INS	Inline XBRL Instance Document
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

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.

JIADE LIMITED — By:	/s/ Yuan Li
Name:	Yuan Li
Title:	Co-Chief Executive Officer