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6-K

Kingsoft Cloud Holdings Ltd (KC)

6-K 2026-04-23 For: 2026-04-23
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Added on April 23, 2026

UNITED STATES

SECURITIES AND EXCHANGECOMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER

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

THE SECURITIES EXCHANGEACT OF 1934

For the month ofApril 2026

Commission file number:001-39278

KingsoftCloud Holdings Limited

(Exact Name of Registrantas Specified in Its Charter)

Building D, Xiaomi Scienceand Technology Park, No. 33 Xierqi Middle Road,

Haidian District

Beijing, 100085, thePeople’s Republic of China

(Address of PrincipalExecutive Offices)

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

Form 20-F  x              Form 40-F  ¨

EXHIBIT INDEX

Exhibit No. Description
99.1 Press Release — Kingsoft Cloud Files Annual Report on Form 20-F for Fiscal Year 2025 and Releases 2025 Environmental, Social and<br>Governance Report

SIGNATURE

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.

Kingsoft<br> Cloud Holdings Limited
Date: April 23, 2026 By: /s/ Yi Li
Name: Yi Li
Title: Chief Financial Officer

Exhibit 99.1

Kingsoft Cloud Files Annual Report on Form 20-F for FiscalYear 2025 and Releases 2025 Environmental, Social and Governance Report

04/23/2026

BEIJING, April 23, 2026 -- Kingsoft Cloud Holdings Limited (“we,” “Kingsoft Cloud” or the “Company”) (NASDAQ: KC and HKEX: 3896), a leading cloud service provider in China, today announced that it filed its annual report on Form 20-F for the fiscal year ended December 31, 2025 with the Securities and Exchange Commission ("SEC") on April 23, 2026. The Company also published an annual report for the year ended December 31, 2025 (the "Hong Kong Annual Report") pursuant to the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the "HKEx") on the same day. The annual report can be accessed on the Company's investor relations website at http://ir.ksyun.com as well as the SEC's website at http://www.sec.gov and HKEx's website at http://www.hkexnews.hk.

The Company will provide hard copies of its annual report containing the audited consolidated financial statements, free of charge, to its shareholders and ADS holders upon request. Requests should be submitted to ksc-ir@kingsoft.com.

In addition, the Company has published its 2025 Environmental, Social and Governance (ESG) Report (the “ESG Report”) to provide an in-depth review of the Company’s progress in the past year in its ESG practices, including business ethics, responsible operation, talent development, green development, sustainable supply chain, and corporate responsibility.

We have improved our ESG practices and this year we launched the “CLOUD” sustainable development strategy, covering “Corporate Governance, Labor Cultivating, Operational Excellence, Unified Eco-Creation and Digital Innovation”.

To learn more about Kingsoft Cloud’s ESG efforts and to view the full ESG Report, please visit https://ir.ksyun.com/esg.

About Kingsoft Cloud Holdings Limited

Kingsoft Cloud Holdings Limited (NASDAQ: KC and HKEX:3896) is a leading cloud service provider in China. With extensive cloud infrastructure, cutting-edge cloud-native products based on vigorous cloud technology research and development capabilities, well-architected industry-specific solutions and end-to-end fulfillment and deployment, Kingsoft Cloud offers comprehensive, reliable and trusted cloud service to customers in strategically selected verticals.

For more information, please visit: http://ir.ksyun.com.

For investor and media inquiries, please contact:

Kingsoft Cloud Holdings Limited

Wayne Wong

Tel: +86 (10) 6292-7777 Ext. 6300

Email: ksc-ir@kingsoft.com