Sunday 01 Jan New Year's Day
Thursday 19 Jan Exchange Holiday
Friday 20 Jan Market opens only for Clearing & Settlement
Sunday 22 Jan Lunar New Year's Eve
Monday 23 Jan Spring Festival
Tuesday 24 Jan Spring Festival
Wednesday 25 Jan Spring Festival
Thursday 26 Jan Spring Festival
Friday 27 Jan Spring Festival
Monday 27 Feb Peace Memorial Day
Tuesday 28 Feb Peace Memorial Day
Wednesday 04 Apr Children's Day and Tomb-sweeping Day
Tuesday 01 May Labor Day
Saturday 23 June Dragon Boat Festival
Sunday 30 Sep Mid-autumn Festival
Wednesday 10 Oct National Day
Monday 31 Dec Memorial day in honor of Founding of the Republic of China
Remarks: Additional Trading Days on Saturday
1. February 4 (Saturday)
2. March 3 (Saturday)
3. December 22 (Saturday)
Source: http://www.twse.com.tw/en/trading/trading_days.php