TMX Newsfile·2026-02-04 11:00Core Viewpoint - Sigma Lithium Corporation has received an official technical statement from Brazil's mining regulator confirming the safety of its waste piles, which counters misinformation and supports the company's operational integrity [2][3][4]. Regulatory Confirmation - The Agencia Nacional de Mineracao (ANM) confirmed the absence of serious technical risks associated with Sigma Lithium's waste piles and stated that there were no legal grounds for precautionary closure measures [3][6]. - Inspections conducted on January 20 revealed no geotechnical anomalies that would indicate imminent risk, reinforcing the company's compliance with safety standards [3][6]. Response to Misinformation - The statement from the ANM addresses false information circulated in a negative media campaign against Sigma Lithium, which included the use of fake government communications [4][10]. - The company has been proactive in maintaining dialogue with regulatory authorities and providing necessary documentation to demonstrate compliance with regulations [7]. Operational Impact - Sigma Lithium's management believes that an ongoing administrative inquiry regarding its waste piles does not materially affect its mining operations, as confirmed by a safety inspection that noted over two years without labor accidents [5][6]. - The company is ramping up its mining activities and has a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate annually, with plans to double this capacity with a second plant [12][13]. Environmental and Safety Standards - Sigma Lithium emphasizes its commitment to environmental sustainability, producing "Quintuple Zero Green Lithium" with no coal power, tailings dams, potable water usage, hazardous chemicals, or labor accidents [12]. - The company utilizes advanced technology for dry stacking lithium fines, which has generated substantial demand and sales, contributing to its operational reinvestment [9].