According to MiningNews.net, operations at the Sigma lithium project were abruptly halted on October 2, 2026, after regulators cited an unusual compliance obstacle. This marks the second instance in which the site has faced a forced shutdown stemming from non-standard administrative disputes.

The renewed operational pause highlights ongoing jurisdictional uncertainties that continue to affect lithium extraction projects in the region, where permitting processes frequently intersect with complex local regulatory requirements. Short-term concentrate supply flows may experience minor disruptions, encouraging off-take agreements to prioritize diversified sourcing channels while developers work through extended review periods.