Hong Kong stock exchange filing shows:Hebei Port Group Bought 900,000 H-Shares In China Merchants Securities 6099.Hk At Avg Price Of Hk$10.49 ($1.35) Per Share On July 8 - Hkex Filing.Hebei Port Group'S Long Position In China Merchants Securities Rises To 5.01% From 4.94% - Hkex Filing.