BBL ASSET MANAGEMENT COMPANY LIMITED| | Offering Date : 23/12/2002 - 25/12/2002

KRUNGSRI ASSET MANAGEMENT COMPANY LIMITED|

ONE ASSET MANAGEMENT LIMITED| | Offering Date : 03/01/2005 - 10/01/2005

KRUNGSRI ASSET MANAGEMENT COMPANY LIMITED| | Offering Date : 21/11/2006 - 29/11/2006

ONE ASSET MANAGEMENT LIMITED| | Offering Date : 01/01/2011 - 01/01/2011

PRINCIPAL ASSET MANAGEMENT COMPANY LIMITED| | Offering Date : 09/02/2011 - 16/02/2011

KASIKORN ASSET MANAGEMENT COMPANY LIMITED| | Offering Date : 28/03/2013 - 11/04/2013

ONE ASSET MANAGEMENT LIMITED| | Offering Date : 14/10/2013 - 25/10/2013

PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED | Q1/2011

PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED | Q2/2011