Registration No. : 0107535000371 No. L009/2019 9th May 2019 Subject : The explanation of operating results for the 1st quarter 2019 Attention : The President The Stock Exchange of Thailand Dear Sir, For the

Page 1 of 3 May 10, 2019 Re: Management Discussion and Analysis for Quarter 1/2019 (March 31 ,2019) To: Director and Manager of the Stock Exchange of Thailand Patkol Public Company Limited and its

to the same period of 2018 To : The President of the Stock Exchange of Thailand The Company would like to provide details of changes in profit and loss of the first quarter 2019 interim consolidated

Registration No. : 0107535000371 No. L015/2019 6th August 2019 Subject : The explanation of operating results for the 2nd quarter 2019 Attention : The President The Stock Exchange of Thailand Dear Sir, For the

Page 1 of 2 August 9, 2019 Re: Management Discussion and Analysis for Quarter 2/2019 (June 30 ,2019) To: Director and Manager of the Stock Exchange of Thailand Patkol Public Company Limited and its

2019 Subject: Management Discussion and Analysis - for the three-month period ended 30 June 2019. To: The President of Stock Exchange of Thailand B-52 Capital Public Company Limited (“the Company”) would

2019 Subject: Management Discussion and Analysis - for the three-month period ended 30 June 2019 (Revise) To: The President of Stock Exchange of Thailand B-52 Capital Public Company Limited (“the Company

Registration No. : 0107535000371 No. L041/2018 8th November 2018 Subject : The explanation of operating results for the 3rd quarter 2018 Attention : The President The Stock Exchange of Thailand Dear Sir, For the

: The President of the Stock Exchange of Thailand The Company would like to provide details of changes in profit and loss of the first quarter 2020 interim consolidated financial statements of Wave

Ref. POL. 083/2563 May 15th 2020 Re: Clarification of the Performance of S & P Syndicate Public Company Limited Dear The President The Stock Exchange of Thailand S & P Syndicate Public Company