美股异动 | 锂矿概念股走低 Sigma Lithium(SGML.US)跌超9%

Core Viewpoint - Lithium mining stocks have declined significantly, with Sigma Lithium, Lithium Americas, and Albemarle experiencing drops of over 9%, 5%, and 6.5% respectively due to regulatory issues in Brazil [1] Group 1: Company Specifics - Sigma Lithium's flagship project in Minas Gerais, Brazil, has been ordered to close three waste piles by the Brazilian Ministry of Labor, citing "serious and imminent risks" to workers and the local community [1] - The project, which is Brazil's largest lithium operation with an annual capacity of approximately 270,000 tons of lithium concentrate, has been suspended since October of last year, with recovery efforts facing ongoing obstacles [1] - Sigma Lithium has denied any safety hazards, asserting that the closed waste piles consist only of soil and contain no pollutants, claiming that the restrictions will not impact its overall operations or recovery plans [1] Group 2: Regulatory and Market Impact - The Ministry of Labor has indicated that the waste piles pose a risk of collapse, which could endanger nearby residences or contaminate the Pioi River, highlighting ongoing safety concerns [1] - Due to the lack of clarity regarding the timeline for resuming operations, Bank of America downgraded Sigma Lithium's rating last week [1] - The Ministry of Labor has rejected Sigma's appeal to lift the closure order, requiring the company to submit corrective documents to demonstrate that the issues have been resolved [1]