商品日报（8月29日）：沪锡增仓拉涨刷新近五个月新高 棕榈油持续回落

Group 1 - Domestic commodity futures market showed mixed results on August 29, with the main contract for tin rising over 2% and glass, rapeseed meal, polysilicon, and cotton contracts increasing by over 1% [1][2] - The China Securities Commodity Futures Price Index closed at 1431.79 points, up 3.48 points or 0.24% from the previous trading day, while the China Securities Commodity Futures Index closed at 1977.79 points, up 4.80 points or 0.24% [1] Group 2 - Tin prices surged to a five-month high of 278,880 yuan/ton, driven by increased market sentiment and concerns over tightening supply due to low overseas inventories and slow recovery of Myanmar's tin mines [2] - Glass futures showed signs of stabilization, with a 1.63% increase in the main contract, supported by a decrease in inventory and positive market sentiment regarding macroeconomic policies and seasonal demand [3] - Palm oil contracts continued to decline, down 1.69%, due to a lack of upward driving forces, although there are expectations of reduced supply in the Southeast Asian region [4] - Industrial silicon faced downward pressure with a 1.29% drop in the main contract, attributed to weak downstream demand and high overall inventory levels [4]