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Property, Plant and Equipment, Net
12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment, Net  
Property, Plant and Equipment, Net

7.    Property, Plant and Equipment, Net

Property, plant and equipment and related accumulated depreciation were as follows:

December 31, 

December 31, 

    

2021

    

2022

Mold and tooling

 

2,354,411

3,901,436

Leasehold improvements

1,876,294

3,408,731

Charging & battery swap equipment

 

2,279,893

3,393,603

Production facilities

831,776

3,252,362

Construction in process

1,304,548

3,114,345

Computer and electronic equipment

 

575,364

1,250,861

Purchased software

 

493,374

985,141

R&D equipment

 

552,956

939,586

Buildings and constructions

 

875,562

890,576

Corporate vehicles

180,157

473,602

Others

 

274,906

991,597

Subtotal

 

11,599,241

22,601,840

Less: Accumulated depreciation

 

(4,131,352)

(6,901,232)

Less: Accumulated impairment

(68,373)

(41,942)

Total property, plant and equipment, net

 

7,399,516

15,658,666

The Group recorded depreciation expenses of RMB1,041,011, RMB1,702,559 and RMB2,874,912 for the years ended December 31, 2020, 2021 and 2022, respectively.

The Group reviews the useful lives and the estimated total units of production of its property, plant and equipment on regular basis. For the year ended December 31, 2022, in response to the planned products upgrade of certain existing vehicle models, the Group carried out an assessment on the useful lives of the production facilities based on the revised plan of future production volume of these vehicle models. This assessment resulted in the accelerated useful lives of certain production facilities which resulted in an increase in depreciation expense of RMB44,208, which is recorded in cost of sales for the year ended December 31, 2022.