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 April 2024

Commission File Number: 001-34238

THE9 LIMITED

17 Floor, No. 130 Wu Song Road

Hong Kou District, Shanghai 200080

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 ¨

The9 Limited Regains Compliance with Nasdaq Listing Requirement

The9 Limited (“The9”) (Nasdaq: NCTY), an established Internet company, today announced that it received a notification letter from the Nasdaq Listing Qualifications department of the Nasdaq Stock Market dated April 22, 2024 stating that The9 has regained compliance with the Nasdaq Listing Rule 5550(b) which requires The9 to maintain either a minimum $2.5 million stockholders’ equity, or $35 million market value of listed securities, or $500,000 of net income from continuing operations for The Nasdaq Capital Market. The matter is now closed.

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.

Date: April 23, 2024