98372W103

(CUSIP Number)
Yue (Justin) Tang
7-8F,BLOCK A,AEROSPACE SCIENCE&TECH PLZ, NO. 168 HAIDE THIRD AVENUE, NANSHAN DIST
SHENZHEN, F4, 518067
86-0755-86282977

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
03/31/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




schemaVersion:


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Represents 1,165,278 Class A ordinary shares in form of 194,213 ADSs and 97,600,000 Class B ordinary shares held by Mangrove Coast Investment Limited, a British Virgin Islands company. Mangrove Coast Investment Limited is wholly owned by Mangrove Coast Trust, of which Mr. Yue (Justin) Tang and his family members are the beneficiaries. Class B ordinary shares are convertible at any time by the holder thereof into Class A ordinary shares on a one-for-one basis. Class A ordinary shares are not convertible into Class B ordinary shares under any circumstances. Each holder of Class A ordinary shares is entitled to one vote per share and each holder of Class B ordinary shares is entitled to twenty votes per share on all matters submitted to them for vote. (2) Percent of class is calculated based on 234,517,901 ordinary shares issued and outstanding as of December 31, 2025, being the sum of (i) 136,917,901 Class A ordinary shares and (ii) 97,600,000 Class B ordinary shares, assuming conversion of all Class B ordinary shares into Class A ordinary share on a one-for-one basis.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Represents 1,165,278 Class A ordinary shares in form of 194,213 ADSs and 97,600,000 Class B ordinary shares held by Mangrove Coast Investment Limited, a British Virgin Islands company. Mangrove Coast Investment Limited is wholly owned by Mangrove Coast Trust, of which Mr. Yue (Justin) Tang and his family members are the beneficiaries. Class B ordinary shares are convertible at any time by the holder thereof into Class A ordinary shares on a one-for-one basis. Class A ordinary shares are not convertible into Class B ordinary shares under any circumstances. Each holder of Class A ordinary shares is entitled to one vote per share and each holder of Class B ordinary shares is entitled to twenty votes per share on all matters submitted to them for vote. (2) Percent of class is calculated based on 234,517,901 ordinary shares issued and outstanding as of December 31, 2025, being the sum of (i) 136,917,901 Class A ordinary shares and (ii) 97,600,000 Class B ordinary shares, assuming conversion of all Class B ordinary shares into Class A ordinary share on a one-for-one basis.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Represents 1,548,714 Class A ordinary shares in the form of 258,119 ADSs and 2,519,527 Class A ordinary shares held by Purple Mountain Holding Ltd., a British Virgin Islands company. Purple Mountain Holding Ltd. is wholly owned by Mr. Yue (Justin) Tang. Class B ordinary shares are convertible at any time by the holder thereof into Class A ordinary shares on a one-for-one basis. Class A ordinary shares are not convertible into Class B ordinary shares under any circumstances. Each holder of Class A ordinary shares is entitled to one vote per share and each holder of Class B ordinary shares is entitled to twenty votes per share on all matters submitted to them for vote. (2) Percent of class is calculated based on 234,517,901 ordinary shares issued and outstanding as of December 31, 2025, being the sum of (i) 136,917,901 Class A ordinary shares and (ii) 97,600,000 Class B ordinary shares, assuming conversion of all Class B ordinary shares into Class A ordinary share on a one-for-one basis.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Represents (i) 6,197,778 Class A ordinary shares in form of 1,032,963 ADS and 5,903,645 Class A ordinary shares held by Yue (Justin) Tang, (ii) 1,548,714 Class A ordinary shares in the form of 258,119 ADSs and 2,519,527 Class A ordinary shares held by Purple Mountain Holding Ltd., a British Virgin Islands company, and (iii) 1,165,278 Class A ordinary shares in form of 194,213 ADSs and 97,600,000 Class B ordinary shares held by Mangrove Coast Investment Limited, a British Virgin Islands company. Purple Mountain Holding Ltd. is wholly owned by Mr. Yue (Justin) Tang. Mangrove Coast Investment Limited is wholly owned by Mangrove Coast Trust, of which Mr. Yue (Justin) Tang and his family members are the beneficiaries. Class B ordinary shares are convertible at any time by the holder thereof into Class A ordinary shares on a one-for-one basis. Class A ordinary shares are not convertible into Class B ordinary shares under any circumstances. Each holder of Class A ordinary shares is entitled to one vote per share and each holder of Class B ordinary shares is entitled to twenty votes per share on all matters submitted to them for vote. (2) Percent of class is calculated based on 234,517,901 ordinary shares issued and outstanding as of December 31, 2025, being the sum of (i) 136,917,901 Class A ordinary shares and (ii) 97,600,000 Class B ordinary shares, assuming conversion of all Class B ordinary shares into Class A ordinary share on a one-for-one basis.


SCHEDULE 13D


 
Mangrove Coast Investment Limited
 
Signature:/s/ Yue (Justin) Tang
Name/Title:Yue (Justin) Tang/ Director
Date:03/31/2026
 
Rhone Trustees (Bahamas) Ltd. as trustee of the Mangrove Coast Trust
 
Signature:/s/ Keisha Cleare
Name/Title:Keisha Cleare/ Trustee
Date:03/31/2026
 
Signature:/s/ Rawiya Rahming
Name/Title:Rawiya Rahming/ Trustee
Date:03/31/2026
 
Purple Mountain Holding Ltd.
 
Signature:/s/ Yue (Justin) Tang
Name/Title:Yue (Justin) Tang/ Director
Date:03/31/2026
 
Yue (Justin) Tang
 
Signature:/s/ Yue (Justin) Tang
Name/Title:Yue (Justin) Tang
Date:03/31/2026