Share option plans

2014 Incentive Plan

On July 23 2014, the Company’s board of directors and shareholders approved the 2014 Incentive Plan (the “2014 Plan”). Awards under the 2014 Plan vest

to 4 years from the date of grant and expire no more than 10 years after the grant date. The Company reserved a total of 5,500,000 common shares for issuance under the 2014 Plan. As of June 30, 2022, 37,911 shares remain available for grant under the 2014 Plan.

2017 Incentive Plan

On March 1, 2017, the Company’s board of directors and shareholders approved the 2017 Incentive Plan (the “2017 Plan”). Awards under the 2017 Plan vest

to 4 years from the date of grant and expire no more than 10 years after the grant date. The Company reserved a total of 6,015,137 common shares for issuance under the 2017 Plan. As of June 30, 2022, 86,632 shares remain available of grant under the 2017 Plan.

2021 Incentive Plan

In December 2021, the Company’s board of directors and shareholders approved the 2021 Incentive Plan (the “2021 Plan”). Awards under the 2021 Plan vest

to 4 years from the date of grant and expire no more than 10 years after the grant date. The Company reserved a total of 4,000,000 common shares for issuance under the 2021 Plan. As of June 30, 2022, 2,333,872 shares remain available of grant under the 2021 Plan.

The exercise price, vesting and other conditions of individual awards are determined by the board of directors or any of the committees appointed by the board of directors to administer the 2014, 2017 and 2021 Plans. The awards are subject to multiple service vesting periods

to 4 years, and will expire 10 years after the date of award. Upon the termination of the grantee’s continuous service, the Company has the right to repurchase the vested award or shares obtained.

Total compensation costs recognized for the six months ended June 30, 2021 and 2022 were as follows:


	For the six months ended June 30,
	2021		2022
	RMB		RMB			US$
Cost of revenues		20		(6	)		(1	)
Research and development		6,464		(1,599	)		(239	)
Sales and marketing		1,733		520			78
General and administrative		10,819		11,269			1,682

Total		19,036		10,184			1,520