Brazil regulator orders partial halt at Sigma Lithium mine over 'imminent risk' (updated)

Sigma Lithium

30/09/2026 17:53

    (Adds new information in bullets)
       RIO DE JANEIRO, Sept 30 (Reuters) - Brazil's mining
regulator ANM has ordered Sigma Lithium  SGML.V  to halt mining
activities in part of its Grota do Cirilo mine, citing an
unspecified "imminent risk," according to a document seen by
Reuters on Wednesday.
    * The agency ordered immediate corrective work to begin on
the eastern slope of the mine's north pit, where it said there
was a "ruptured section"
    * The area will remain under interdiction until the company
completes the work on the eastern slope, ANM said
    * ANM also demanded a number of measures to mitigate risks
at the mine, adding that it "will take appropriate measures in
the event of non-compliance"
    * It is unclear how much the stoppage will affect Sigma's
mining activities, already impacted by the recent suspension of
its environmental licenses and an interdiction on its waste
piles
    * Sigma did not immediately reply to a request for comment


    (Reporting by Fabio Teixeira; Editing by Gabriel Araujo)
 ((mailto:Fabio.Teixeira@thomsonreuters.com; +55 21
99603-4782;))