The port of Redwood City handled 572,718t of scrap metal, construction materials and other commodities between July 1 and Sept. 30. The increase in Asiatic and Pacific Northwestern trade, mostly construction-related demands, and the boosted US economy account for the dramatic increase in tonnage at all West Coast ports, board Chair Dick Dodge said. RMC Pacific Materials imported 217,974t of cement from China during the first quarter, an increase of 63 percent since last year’s 133,316t of the same period. Other commodities last year included gypsum, bauxite, dredged sand and construction sand.