Certification under Rule 466

The depositary, Deutsche Bank Trust Company Americas, represents and certifies the following:

(1) That it previously had filed a registration statement on Form F-6 (CooTek (Cayman) Inc., File No. 333-263746) that the Securities and Exchange Commission declared effective, with terms of deposit identical to the terms of deposit of this Post-Effective Amendment No. 1 to Form F-6 Registration Statement except for the number of Class A ordinary shares that an American Depositary Share represents.

(2) That its ability to designate the date and time of effectiveness under Rule 466 has not been suspended.

By:	DEUTSCHE BANK TRUST COMPANY AMERICAS, as Depositary
By:	/s/ Michael Tompkins
	Name:	Michael Tompkins
	Title:	Director
By:	/s/ Kelvyn Correa
	Name:	Kelvyn Correa
	Title:	Director