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Retained earnings (Tables)

12 Months Ended

Dec. 31, 2021

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Summary of Distribution Towards Legal Reserve and Cash Dividend


		2018								2019								2020
		Amount				Cash distribution per share				Amount				Cash distribution per share				Amount				Cash distribution per share
		Amount				Cash distribution per share				Amount				Cash distribution per share				Amount				Cash distribution per share
		NT$000				NT$				NT$000				NT$				NT$000				NT$
Legal reserve			110,308								258,416								232,611
Special reserve			—								19,802								(19,802	)
Cash dividend			872,718				1.20				1,309,032				1.80				1,599,928				2.20