Near-term scrap futures contracts on the London Metal Exchange saw gains over the week to Sept. 22, while weekly trading volumes decreased. Platts, part of S&P Global Commodity Insights, assessed the September contract up $2.50/mt week on week at $360.50/mt, while the October contract jumped $14/mt to $361/mt. The November contract gained $8/mt to $360/mt, while the December contract rose…