Hong Kong stocks opened lower on Aug. 14, with the Hang Seng Index down 0.7% and the Hang Seng Tech Index off 0.6%, while Semiconductor Manufacturing International Corp. rose 4.74% after its earnings release. SMIC (00981.HK) said it expects third-quarter revenue to increase 2% to 4% quarter on quarter, with gross margin guidance of 26% to 28%, helping its shares outperform the broader market at the open.