[DISCLOSURE] SK (034730) reported on Feb. 12 that its operating profit in 2018 declined 18.4 percent to 4.69 trillion won (US$4.18 billion) from the previous year. 

Revenue rose 12 percent on-year to 101.51 trillion won and net profit 18.4 percent to 6.0 trillion won. 

By Hwang You-mee (glamazon@heraldcorp.com)