SHANGHAI, Jul 2 (SMM) - Social inventories of silicon metal across Huangpu port, Kunming city and Tianjin port stood flat on the week at 24,000 mt as of July 2, an SMM survey showed. The inventories kept rising in south China and falling in north China. The outbound volume at Tianjin port increased significantly, while the inflow volume was low. The inventories gradually increased in Kunming after Yunnan resumed production, but the increment was limited as some plants directly traded with other plants. The inventories at Huangpu port rose slightly amid low inflow volume in early July. Social inventories of silicon metal are expected to increase slightly in the short term.