Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure Of Summary Of Significant Accounting Policies [Abstract]

Estimated Useful Lives of Assets

Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets as follows:

►      Buildings	15-30 years
►      Building improvement	2-20 years
►      Machinery and equipment	4-20 years
►      Motor vehicles	3-10 years
►      Office equipment	3-20 years

Lease Term or Estimated Useful Lives of Assets

Right-of-use assets are depreciated on a straight-line basis over the shorter of the lease term and the estimated useful lives of the assets, as follows:

►Land use right	2 to 37 years
►Buildings	2 to  3 years
►Motor vehicles	2 to  3 years
►Office equipment	3 to  5 years