2020 as the date determining the shareholders entitled to attend the Extraordinary General Meeting of Shareholders No. 1/2020 (Record Date) The Company will notify the shareholders of the new schedule

, PDI stopped its mining activities in 2016 and ceased conventional zinc business by the end of 2017. Whilst sustaining the zinc business as a trading business, PDI reassessed its business structure to

- Translation - LPH/SET/2017/024 October 2, 2017 Subject : Schedule for the date and agenda of the Extraordinary General Meeting of the Shareholders No.1/2017 (Revised) To : President The Stock

: Schedule f No.1/2017 : President The Stock ard of Directo ”) No. 5/2017 ermined the GM No. 1/20 room, The G gkapi, Bang ermined the 1/2017 on Mo ermined the a 1 : ard of Directo 2 : ard of Directo for the

-Translation- Ref. No. PorBor. 004 / 2020 January 10, 2020 Subject: Notifying cancellation of the resolution of the Board of Directors’ Meeting and Schedule Entering into Transaction of Disposing of

extent of the interest of the connected persons in the transaction : -Non- 9. This transaction allows to standard of receiving and selling of assets. In this schedule the company sold out the investment

Mine’s reserves, PDI stopped its mining activities in 2016 and ceased the conventional zinc business end 2017, whilst sustaining part of the zinc related activities under a metal trading business

reserves, PDI stopped its mining activities in 2016 and ceased the conventional zinc business end 2017. Whilst sustaining part of the zinc related activities under a metal trading business, PDI reassessed

Thailand Due to depletion of Mae Sod Mine’s reserves, PDI stopped its mining activities in 2016 and ceased the conventional zinc business end 2017. Whilst sustaining part of the zinc related activities under

selling of assets. In this schedule the company sold out the investment port amount 27,000 baht related to total assets of the company was less than 15% of total assets and the company has no transaction