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Expenses by nature (Tables)

12 Months Ended

Dec. 31, 2020

Analysis of income and expense [abstract]

Summary of Expenses by nature

		Year ended December 31,
		2018				2019				2020
		NT$000				NT$000				NT$000
Raw materials and supplies used			3,079,909				3,575,283				4,708,493
Employee benefit expenses			5,606,833				6,075,773				6,010,227
Depreciation expenses			3,376,579				3,731,914				4,175,519
Others			4,464,499				4,590,720				4,686,218
			16,527,820				17,973,690				19,580,457

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- Definition

The disclosure of expenses by nature. [Refer: Expenses, by nature]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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