广期所碳酸锂主力合约打开跌停板，现跌幅收窄至9%

Group 1 - The core point of the article is that the main contract for lithium carbonate on the Guangqi Exchange opened with a limit down and has narrowed its decline to 9%, currently priced at 135,280 yuan per ton [1]. Group 2 - The article indicates a significant market movement in lithium carbonate, reflecting volatility in the commodity market [1].