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.

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).




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SCHEDULE 13D




Comment for Type of Reporting Person:
* Represents (i) 28,738,439 Class A ordinary shares held by JYLu Holding Ltd., (ii) 6,293,500 Class A ordinary shares in the form of ADSs held by JYLu Holding Ltd., (iii) 10,385,980 Class A ordinary shares in the form of ADSs held by Mr. Jiayan Lu, and (iv) 450,000 Class A ordinary shares issuable upon exercise of options within 60 days after the date hereof. JYLu Holding Ltd. is a British Virgin Islands company wholly owned by Jiayan Lu. ** The percentage of the class of securities is calculated by dividing the number of shares beneficially owned by the reporting person by 400,523,605 ordinary shares, being all of the issuer's issued and outstanding ordinary shares as of February 28, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
* Represents (i) 28,738,439 Class A ordinary shares held by JYLu Holding Ltd., (ii) 6,293,500 Class A ordinary shares in the form of ADSs held by JYLu Holding Ltd., (iii) 10,385,980 Class A ordinary shares in the form of ADSs held by Mr. Jiayan Lu, and (iv) 450,000 Class A ordinary shares issuable upon exercise of options within 60 days after the date hereof. JYLu Holding Ltd. is a British Virgin Islands company wholly owned by Jiayan Lu. ** The percentage of the class of securities is calculated by dividing the number of shares beneficially owned by the reporting person by 400,523,605 ordinary shares, being all of the issuer's issued and outstanding ordinary shares as of February 28, 2026.


SCHEDULE 13D


 
Jiayan Lu
 
Signature:/s/ Jiayan Lu
Name/Title:Jiayan Lu
Date:05/14/2026
 
JYLu Holdings Ltd.
 
Signature:/s/ Jiayan Lu
Name/Title:Director
Date:05/14/2026