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

of the Securities Exchange Act of 1934

FOR THE MONTH OF SEPTEMBER 2023

COMMISSION FILE NUMBER: 001-33863

XINYUAN REAL ESTATE CO., LTD.

27/F, China Central Place, Tower II
79 Jianguo Road, Chaoyang District
Beijing 100025
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 o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

TABLE OF CONTENTS

Exhibits  

Exhibit 99.1 Press Release of Xinyuan Real Estate Co., Ltd. entitled "Xinyuan Announces Optimization of Regulations in Real Estate Sector in Zhengzhou where the Company’s Investment Focuses on" dated September 15, 2023

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.

Xinyuan Real Estate Co., Ltd.
By:	/s/ Yong Zhang
Name:	Yong Zhang
Title:	Chief Executive Officer

Date: September 15, 2023