profit margin was slightly brought down by 0.9% of gross profit margin due to turnaround costs and the rise of main raw material prices from tight supply plus greater crude oil prices. 2. In Q2 2018

2018, Cost of sales was 4,160 MTHB, increased by 231 MTHB comparing to 2017 or 5.9% as a result of greater Ethylene and Glycerin price from higher crude oil price and their limited supply. 2. In Q3 2018

or 17.2% due the drastic decline in Ethylene and Glycerin price from ample supply plus lower crude oil price. 2. In Q3 2019, Selling and Administrative Expenses was 361 MTHB, increased by 42 MTHB or

in Ethylene and Glycerin price from ample supply plus lower crude oil price. 2. In Q1 2020, Selling and Administrative Expenses was 350 MTHB, increased by 30 MTHB or 9% comparing to Q1 2019 which

the same period last year. Most raw materials cost increased following the rising of crude oil price that increased around 6.70% comparing to the same period last year, as well as the slowdown of

) (112) -102% Profit attributable to owners of the Company 1,174 993 1,316 12% 33% 3,855 4,393 14% Basic earnings per share (Baht) 0.85 0.72 0.96 2.80 3.19 Note: 1/ EBITDA from Refinery Business of the

1,146 -45% -17% Basic earnings per share (Baht) 1.51 1.01 0.83 Note: 1/ EBITDA from Refinery Business of the Company, BCP Trading Pte. Ltd. and Bongkot Marine Services Co., Ltd. 2/ EBITDA from Marketing

Quantitative methods in accounting research A String of Earnings Increases, Future Earnings Uncertainty, and Firm Fundamentals Sarayut Rueangsuwan Kasetsart University SEC Working Papers Forum 19th

% 2,153 742 -66% Basic earnings per share (Baht) 0.72 0.16 0.38 1.56 0.54 Note: 1/ EBITDA from Refinery Business of the Company, BCP Trading Pte. Ltd. and share of profit from associated companies 2/ EBITDA

) -205% -183% 5,608 2,463 -56% Basic earnings per share (Baht) 1.07 1.35 (1.12) 4.07 1.79 Note: 1/ EBITDA from Refinery Business of the Company, BCP Trading Pte. Ltd. and share of profit associated