: Management explanation and analysis for the yearly ending 31 December 2018 Attention: The President of, The Stock Exchange of Thailand ZIGA Innovation Public Company Limited ( “ the Company” ) would like to

May 15, 2017 Subject : Operating Result Quarter 1 Ending March 31, 2017 To : The President The Stock Exchange of Thailand WICE Logistics Public Company Limited would like to clarify the change in

the 2nd Quarter of 2017 Ending June 30, 2017 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 4/2017

margin ng in rental e Company’ in 2017 wa rcent. While which highe s due to the he increasin the second 31.11 perc 81.04 millio 17 er Ending 3 pany”) Mee pany’s finan h has alrea howed a net percent. An

Page 1 of 4 No. RJH – SET 12/2017 11 Aug 2017 Subject : Management Discussion and Analysis for the 2nd Quarter of 2017 ending on 30 June 2017 To : The President The Stock Exchange of Thailand

¸¡à¸´.ย.2560 WATTANAPAT HOSPITAL TRANG PUBLIC COMPANY LIMITED No. WPH – SET 3/2017 2 October 2017 Subject : Management Discussion and Analysis for Quarter 2 of 2017 ending on 30 June 2017 To

WATTANAPAT HOSPITAL TRANG PUBLIC COMPANY LIMITED No. WPH – SET 4/2017 8 November 2017 Subject : Management Discussion and Analysis for the 9-month period and Quarter 3 of 2017 ending on 30 September

Page 1 of 4 No. RJH – SET 14/2017 10 November 2017 Subject : Management Discussion and Analysis for the 3rd Quarter of 2017 ending 30 September 2017 To : The President The Stock Exchange of Thailand

for the 3rd Quarter of 2017 Ending 30 September 2017 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 5

by the highest value based on total considerations method is equal to 13.37% based on the consolidated financial statements of the Company and subsidiaries for the 9-month period ending 31 September