Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2025

(1)

Transaction with related parties

(i) Sales of products


	For the year ended December 31,
	2023		2024		2025
	RMB		RMB		RMB		US$
Hefei Heyi		—		106		13,278		1,899
Zhejiang Zhiyi		—		—		16		2
Yitong Zhihang		3,009		—		13		2
Hangzhou Zhongan		—		—		9		1
Wanyi Tianxia		—		18		—		—
Fengshan Fengyi		—		9		—		—
Xiyu Qingniao		8,850		—		—		—

Total		11,859		133		13,316		1,904

(ii) Provision of services


	For the year ended December 31,
	2023		2024		2025
	RMB		RMB		RMB		US$
Wanyi Tianxia		—		94		132		19
Fengshan Fengyi		—		—		89		12
Hefei Heyi		—		599		85		12
Wuxi Liangyun		—		33		41		6
Pengcheng Wing		—		—		28		4
Yitong Zhihang		—		499		19		3

Total		—		1,225		394		56

(iii) Receipt of services

The Group maintained a consulting agreement with consulting firm RedChip. The consulting fees incurred during the period from November 24, 2025 to December 31, 2025 amounted to RMB1,127 (US$161), which were settled via a combination of cash and RSUs.

(2)

Contract liabilities from sales of products


	As of December 31,
	2024		2025
	RMB		RMB		US$
Xiyu Qingniao		2,000		2,279		326
Fengshan Fengyi		—		28		4

Total		2,000		2,307		330

(3)

Amount due from related parties for the sales of products and services


	As of December 31,
	2024			2025
	RMB			RMB			US$
Hefei Heyi		465			5,380			769
Pengcheng Wing		—			30			4
Wanyi Tianxia		40			—			—
Less: expected credit losses provision		(47	)		(222	)		(32	)

Total		458			5,188			741