Group 1 - The London Metal Exchange (LME) reported that tin inventory initially increased and then decreased, reaching a near eight-month high of 3,050 tons on December 3, before declining again in the following week [1] - The Shanghai Futures Exchange indicated that tin inventory continued to accumulate, with a weekly increase of 7.96% to 6,865 tons, marking a new high in over two months as of December 5 [1] - Generally, a continuous decline in inventories on domestic and international exchanges tends to support price levels, while an increase may exert downward pressure on prices [3] Group 2 - A comparison of LME and Shanghai Futures Exchange tin inventories since November 2025 shows significant fluctuations in inventory levels [4]