Business conditions in South Korea's manufacturing sector improved in August, the latest Business Survey Index from the Bank of Korea showed on Wednesday with an unadjusted score of 66 - up from 59 in July.
The outlook index climbed to 68 from 61 in the previous month.
Seasonally adjusted, the index and outlook both were at 68.
In the non-manufacturing sector, the BSI on business conditions for August was 66, up 1 point from the previous month. The outlook for the following month also rose by 6 points to 69.
Seasonally adjusted, the index was at 68 and the outlook was at 71.