Comments on: “Trading costs on the Stock Exchange of Thailand” Authors: Charoenwong C., Ding D.K., Jenwittayaroje N. Comments on: “Risk-taking behaviour during downturn: evidence of loss-chasing and

• The tick sizes are reset at threshold prices so that a single uptick from threshold prices represent a 1 percent increase in stock price. 2.04 5.10 10.20 25.50 51.00 102.00 204 408 2.02 5.05 10.10 25.25

or right of a person arising from derivatives trading. “close out a derivatives position” means to discharge an obligation or terminate rights under derivatives an equal and opposite trade which

quarter of fiscal year 2019 ended as of June 30, 2019 To: The President The Stock Exchange of Thailand Aapico Hitech Public Company Limited (“the Company”) would like to clarify the consolidated financial

The Stock Exchange Market of Thailand Origin Property Public Company Limited and its subsidiaries hereinafter called “The Group” For Quarter3/2019. The operating results were, Description Quarter3/2018

, totally baht 451,000,000. Detail of the transactions are as follows : 1. Transaction date With in September 2nd, 2019. 2. Parties involved Buyer : Ramkhamhaeng Hospital Public Co.,Ltd. Seller : Buy Share in

- 1 - AIT (VP-SEC) 004E/2020 February 11, 2021 Subject: Management's Discussion and Analysis of Operating Results for the year 2020 and Q4-2020 To: The President of the Stock Exchange of Thailand

30, 2019 To : President The Stock Exchange of Thailand K. W. Metal Work Public Company Limited (the “Company”) would like to submit management discussion and analysis of significant changes for the

- 1 - AIT (VP-SEC) 005E/2019 February 26, 2019 Subject: Management's Discussion and Analysis of Operating Results for the year 2018 and Q4-2018 To: The President of the Stock Exchange of Thailand

-1- AIT (VP-SEC) 022E/2022 August 11, 2022 Subject: Management's Discussion and Analysis of Operating Results for Q2-2022 To: The President of the Stock Exchange of Thailand Summary of Operations Q1