沪锡主力合约下挫，涨幅缩窄至6%

Core Viewpoint - The main focus of the article is the decline in the main contract of tin on the Shanghai Futures Exchange, which has seen its growth rate narrow to 6% as of January 26 [1]. Group 1 - The Shanghai tin main contract has experienced a drop, indicating a potential shift in market dynamics [1]. - The growth rate of the tin contract has decreased to 6%, suggesting a slowdown in price appreciation [1].