1 --Translation-- Sor Gor 7/2018 January 19, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation-- Sor Gor 11/2018 February 22, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Audited) To: The President The Stock Exchange of Thailand