refinery margin to shrink. In this quarter, even though the crude oil price situation continues to improve constantly from December 2018, the cost of a proportion of crude oil that was refined within this

% 3,104.93 100.0% 3,339.04 100.0% 7.5% Cost of services (658.51) -79.1% (655.73) -78.7% (652.92) -79.7% -0.4% -0.9% (2,373.50) -76.4% (2,631.21) -78.8% 10.9% Gross profit 174.31 20.9% 176.09 21.2% 166.35 20.3

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