沪锡期货主力合约跌超8%

Group 1 - The core point of the article is that the main contract for Shanghai tin futures experienced a significant drop, falling over 8% to 397,970 yuan per ton as of 10:38 on January 16 [1][2]. Group 2 - The data source for the information is from Choice, indicating that the market is closely monitored for fluctuations in commodity prices [1][2].