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Depreciation, amortization, shipping and handling expenses - Summary of Depreciation and Amortization (Detail)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
CNY (¥)
Disclosure of income statement [line items]        
Amortization of intangible assets [1] ¥ 64,939 $ 9,341 ¥ 38,957 ¥ 1,012
Depreciation of investment property 348 50 355 376
Depreciation of property, plant and equipment 516,276 74,264 492,826 450,092
Depreciation of right-of-use assets 43,129 6,204 41,458 [2] 43,127 [2]
Depreciation and amortization expenses ¥ 624,692 $ 89,859 ¥ 573,596 ¥ 494,607
[1] The higher amortization charges in 2021 and 2022 are mainly due to the amortization charged on additional Technology
Know-how
recognized during the year which are transferred from Group capitalized development cost upon completion and ready for use.
[2] In 2020, COVID-19 related rent rebate received from lessors of RMB 0.2 million has been offset against the depreciation of right-of-use assets.