Group 1 - LME tin inventory has decreased to 1,630 tons, marking a two-year low [2] - Shanghai Futures Exchange reported a weekly decrease in tin inventory by 0.17% to 7,792 tons, remaining at a relatively high level for two months [2] - Generally, declining inventories in both domestic and international exchanges provide support for tin prices, while increasing inventories may exert downward pressure [2] Group 2 - Comparison of LME and Shanghai Futures Exchange tin inventory shows a downward trend in LME inventory from 1,950 tons on August 1 to 1,630 tons on August 19 [4] - The Shanghai Futures Exchange inventory remained stable around 7,792 tons during the same period [4] - The data indicates a significant divergence in inventory trends between LME and Shanghai Futures Exchange [4]