Trinseo S.A. revised earnings guidance for the fourth quarter and full year ended December 31, 2018. For the three months, the company expects net income to be negative $3 million to $1 million and diluted EPS to be between negative $0.06 to $0.02. For the year ending December 31, 2018, the company expects net income to be $291 million to $294 million and diluted EPS to be $6.65 to $6.72.