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

a change in the par value of the company's shares As a result of stock consolidation or stock split 2. When the company offers to sell any newly issued shares At a price that is lower than 90 percent

which the Thai equity market was one of the best-performing markets in the world with a remarkable return as high as 120%, 2004 was the year of consolidation. The Stock Exchange of Thailand (SET) index

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December 31, 2019 To The President The Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Statements For Year Ended December 31, 2019 Overall Group Performance Table 1

September 30, 2019 To The President The Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Statements For nine months ended September 30, 2019 Overall Group Performance

June 30, 2020 To The President The Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Statements For six months ended June 30, 2020 Overall Group Performance Table 1

November 10, 2017. Re: Management Discussion and Analysis for the period 3 months September 30, 2017. To: The Registrar, Stock Exchange of Thailand. Patkol Public Company Limited : Management