HONG KONG, Oct 21 (Reuters) - Hong Kong stocks are set to open 0.38 percent lower on Wednesday tracking softer overseas markets, but Huaneng Power is higher after posting strong quarterly earnings.
Huaneng Power, China's largest electricity provider, is set to open 3.5 percent higher after reporting that it swung to a third-quarter profit on increased output from new operating units, two tarrif rises in the second half of 2008 and lower coal costs.
The benchmark Hang Seng Index was indicated to open down 85.31 points at 22,299.65.
The China Enterprises Index of top locally listed mainland Chinese stocks was set to fall 0.41 percent to 12,986.12. (Reporting by Donny Kwok; Editing by Chris Lewis)