SOUTH KOREA'S LEADING INDICATORS RISE IN FEBRUARY South Korea's index of leading indicators rose 1.9 pct to 172.9 (base 1980) in February after a 0.8 pct rise in January, to stand 17.2 pct higher than in Feburary 1986, provisional Economic Planning Board figures show. The index is based on 10 indicators which include export values, letters of credit received, warehouse stocks, M-1 and M-3 money supply figures and the composite stock exchange index.