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Segment (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of operating segment results

​

​	​	​	​	​	​	​
​	​	Year ended December 31,
​		2021		2022		2023
​	​	RMB	​	RMB	​	RMB
LiDAR segment
Revenue:		​		​		​
Product revenues		686,533		1,127,900		1,738,027
Service revenues	​	14,702	​	50,803	​	112,099
Cost:	​	​	​	​	​	​
Cost of products sold	​	326,160	​	707,617	​	1,176,472
Cost of service revenues	​	4,609	​	12,683	​	30,329
Segment profit	​	370,466	​	458,403	​	643,325
​		​		​		​
Gas detection segment						​
Gas detection product revenues		19,533		23,967		26,863
Cost of products sold		8,203		10,383		8,810
Segment profit		11,330		13,584		18,053
​	​	​	​	​	​	​
Total segment profit		381,796		471,987		661,378

Schedule of reconciliation of the reportable segments' to consolidated loss before income tax

​

​	​	​	​	​	​	​
​	​	Year ended December 31,
​		2021		2022		2023
​	​	RMB	​	RMB	​	RMB
Total profit for reportable segments		381,796		471,987		661,378
Unallocated amounts*						​
Sales and marketing expenses		(69,266)		(104,835)		(148,798)
General and administrative expenses		(236,713)		(201,007)		(320,144)
Research and development expenses		(368,435)		(555,179)		(790,547)
Other operating income, net		27,333		10,817		26,520
Interest income		32,584		58,734		99,813
Interest expenses	​	—	​	—	​	(3,069)
Foreign exchange (loss) gains		(13,275)		20,858		(452)
Other (loss) income, net		118		(2,161)		34
Loss before income tax		(245,858)		(300,786)		(475,265)

*The Group does not distinguish expenses between segments in its internal reporting, and reports expenses by nature as a whole.

Schedule of long-term assets disaggregated by the different geographic locations

​

​	​	​	​	​
​		As of December 31,
​		2022		2023
​	​	RMB	​	RMB
Mainland China	​	665,511		1,144,643
Thailand	​	—	​	39,312
North America	​	14,351		2,146
Switzerland	​	—	​	103
Total long-term assets	​	679,862		1,186,204

​

X

- Definition

Tabular disclosure of long-lived assets, excluding financial instruments, long-term customer relationships of a financial institution, mortgage rights, deferred policy acquisition costs, and deferred tax assets, by geographic areas located in the entity's country of domicile and foreign countries in which the entity holds assets.

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Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

+ References

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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