operating performance for 31 March 2018 as the following. Key Financial Information on 31 March 2018 , 2017 (Unit : thousands) Statements of Income Separate financial statements March 31, 2018 March 31, 2017

operating performance for 31 December 2018 as the following. Key Financial Information on 31 December 2018 , 2017 (Unit : thousands) Statements of Income Separate financial statements December 31, 2018

operating performance for 30 September 2019 as the following. Key Financial Information on 30 September 2019 , 2018 (Unit : thousands) Statements of Income Separate financial statements September 30, 2019

operating performance for 31 December 2019 as the following. Key Financial Information on 31 December 2019 , 2018 (Unit : thousands) Statements of Income Separate financial statements December 31, 2019

Management Discussion and Analysis (MD&A) 2019 Page 1/6 -Translation - Ref: IR63/002 26 February 2020 Subject: Management Discussion and Analysis (MD&A) ending on 31 December 2019 Attention

operating performance for 31 June 2017 as the following. Key Financial Information on 31 June 2017 , 2016 (Unit : thousands) Statements of Income Separate financial statements June 31,2017 June 31,2016

operating performance for 30 September 2017 as the following. Key Financial Information on 30 September 2017 , 2016 (Unit : thousands) Statements of Income Separate financial statements 30 September 2017 30

operating performance for 31 December 2017 as the following. Key Financial Information on 31 December 2017 , 2016 (Unit : thousands) Statements of Income Separate financial statements December 31, 2017

operating performance for 31 March 2019 as the following. Key Financial Information on 31 March 2019 , 2018 (Unit : thousands) Statements of Income Separate financial statements March 31, 2019 March 31, 2018

operating performance for 30 June 2019 as the following. Key Financial Information on 30 June 2019 , 2018 (Unit : thousands) Statements of Income Separate financial statements June 30, 2019 June 30, 2018