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Leasing arrangements - leasee (Tables)

12 Months Ended

Dec. 31, 2021

Presentation of leases for lessee [abstract]

Summary of carrying amount of right-of-use assets and the depreciation expenses


		December 31, 2020				December 31, 2021
		Carrying amount				Carrying amount
		NT$000				NT$000
Land			636,261				616,458
Buildings			19,044				10,946
Machinery and equipment			203,249				204,484
Others			515				3,917

			859,069				835,805


		Year ended December 31,
		2019				2020				2021
		Depreciation expenses				Depreciation expenses				Depreciation expenses
		NT$000				NT$000				NT$000
Land			22,657				20,938				20,486
Buildings			7,113				7,819				9,870
Machinery and equipment			4,520				46,225				247,090
Others			1,809				1,544				1,634

			36,099				76,526				279,080

Summary of profit and loss accounts relating to lease contracts

The information on profit or loss accounts relating to lease contracts is as follows:


		Year ended December 31,
		2019				2020				2021
		NT$000				NT$000				NT$000
Items affecting profit or loss
Interest expense on lease liabilities			14,349				13,442				15,245
Expense on short-term lease contracts			230,589				202,782				143,791