Risks and concentration (Tables)

12 Months Ended

Dec. 31, 2025

Risks and concentration

Summary of accounts receivable concentration of credit risk and customers contribution of total revenue

Accounts receivable concentration of credit risk is as below:

	As of December 31,
	2024		2025
Customer A	—		44	%
Customer B	—		23	%
Customer C	—		20	%
Customer D	—		13	%
Customer G	100	%	—

Customers which contributed more than 10% of total revenues are as below:

	For the Years Ended December 31,
	2023		2024		2025
Customer A	*		*		20	%
Customer E	14	%	11	%	13	%
Customer F	*		11	%	*	%

* Less than 10%