Atlantic Nickel record output at Santa Rita: process and UG transition notes for planners
Reviewed by Joe Ashwell
First reported on International Mining – News
30 Second Briefing
Atlantic Nickel’s Santa Rita nickel sulphide mine in Bahia, Brazil, delivered a record 12,464 t of nickel concentrate in August, with metallurgical recovery reaching 86.72%, the highest since operations restarted under Appian Capital ownership. The performance comes as the operation advances its transition from open pit to underground mining, signalling stable plant performance and effective ore blending during a complex changeover. For process and mine planners, the numbers suggest current comminution and flotation circuits are coping well with evolving underground feed characteristics.
Technical Brief
- August performance is explicitly described as the highest since Santa Rita restarted under Appian ownership.
- Record relates to nickel sulphide concentrate output, not contained nickel metal or ore tonnage.
- Santa Rita is confirmed as a nickel sulphide operation, not laterite, affecting processing route and reagent regime.
Our Take
The earlier piece on the inaugural underground portal blast at Santa Rita (27 March 2026) shows how quickly Atlantic Nickel has moved from access development to achieving record metallurgical recovery, which signals a relatively smooth ramp-up in underground ore blending and plant tuning by Brazilian standards.
An 86.72% nickel recovery places Santa Rita at the upper end of recoveries seen in our recent nickel coverage, which likely improves its cost position and resilience against nickel price volatility compared with lower-recovery sulphide operations.
Within our 50 keyword-matched nickel pieces, Brazil and Bahia feature far less frequently than jurisdictions like Canada or Indonesia, so Santa Rita’s performance strengthens the case for Brazilian sulphide assets as competitive, lower-risk supply options in OEM and trader portfolios.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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