Strong Petrochemical Holdings Limited expected that the company may experience a decrease in profit for the year ended December 31, 2017 as compared to the profit recorded for year ended December 31, 2016, primarily attributable to the decrease in profit margin of the Group as a whole. Such decrease in profit margin is due to the fact that the majority of the Group's revenue for the year ended December 31, 2017 was generated by back-to-back trade arrangements with a lower profit margin.