supplement Form 246-2 previously filed on the date of:   in item:   8. Type of securities subject to the reporting obligation for this acquisition or disposition: (     ) Convertible debentures (CD

this acquisition or disposition: (     ) Convertible debentures (CD) (     ) Transferable subscription rights (TSR) (     ) Derivative warrants (DW)       8.1 Shares (  ) Common shares (     ) Preferred

: (     ) Convertible debentures (CD) (     ) Transferable subscription rights (TSR) (     ) Derivative warrants (DW)       8.1 Shares (  ) Common shares (     ) Preferred shares 8.2 Convertible securities

previously filed on the date of:   in item:   8. Type of securities subject to the reporting obligation for this acquisition or disposition: (     ) Convertible debentures (CD) (     ) Transferable

disposition: (     ) Convertible debentures (CD) (     ) Transferable subscription rights (TSR) (     ) Derivative warrants (DW)       8.1 Shares (     ) Common shares (  ) Preferred shares 8.2 Convertible

subject to the reporting obligation for this acquisition or disposition: (     ) Convertible debentures (CD) (     ) Transferable subscription rights (TSR) (     ) Derivative warrants (DW)       8.1 Shares

) The Company’s convertible debentures No. 1/2018 in the amount of THB 265,000,000 or representing 265,000 units (THB 1,000 per unit of the convertible debentures) and accrued interest as of June 30, 2019

) The Company’s convertible debentures No. 1/2018 in the amount of THB 265,000,000 or representing 265,000 units (THB 1,000 per unit of the convertible debentures) and accrued interest as of June 30, 2019

) The Company’s convertible debentures No. 1/2018 in the amount of THB 265,000,000 or representing 265,000 units (THB 1,000 per unit of the convertible debentures) and accrued interest as of June 30, 2019

convertible debentures No. 1/2018 in the amount of THB 265,000,000 or representing 265,000 units (THB 1,000 per unit of the convertible debentures) and accrued interest as of June 30, 2019 in an amount of THB