SOUTH KOREAN TRADE SURPLUS NARROWS IN FEBRUARY South Korea's customs-cleared trade surplus narrowed to 110 mln dlrs in February from 525 mln in January, provisional trade ministry figures show. In February 1986 there was a deficit of 264 mln dlrs. February exports rose to 2.87 billion dlrs, fob, from 2.83 billion in January and 2.30 billion in February 1986. CIF imports were 2.76 billion against 2.31 billion in January and 2.57 billion in February last year.