Battery Mineral Resources Corp. (TSXV: BMR) (OTCQB: BTRMF) has announced two key regulatory milestones at its 100%-owned Punitaqui Copper Project in Chile's Coquimbo Region. Chile's national mining and geology regulator, SERNAGEOMIN, has granted an exploitation permit for the Cinabrio Norte deposit and authorized operation of Tailings Dam No. 4 (TD4) following completion of planned reinforcement works. The developments represent meaningful progress on both the development and operational fronts at Punitaqui, a project investors have been closely tracking as BMR pursues copper-focused growth.

Key Points

  • Battery Mineral Resources Corp. (TSXV: BMR) (OTCQB: BTRMF) announced dual regulatory approvals at the Punitaqui Copper Project in Chile.
  • SERNAGEOMIN granted the Cinabrio Norte exploitation permit and authorized TD4 operation following completed reinforcement works.
  • TD4 is authorized for approximately nine months of operation; the tailings filtration plant carries a ten-year operating authorization once commissioned.
  • Investors may be watching for further updates on mine planning at Cinabrio Norte and progress on tailings filtration plant capital cost optimisation.

Cinabrio Norte Exploitation Permit Advances Punitaqui Development Strategy

The Cinabrio Norte deposit is located approximately 110 metres north of the existing Cinabrio underground workings at the 220-metre level. SERNAGEOMIN's exploitation permit provides a regulatory foundation for BMR to advance engineering, mine planning, and development at the deposit, which the company views as a potential additional feed source for its Los Mantos concentrate plant. BMR has completed approximately 400 metres of underground access ramp development extending north from the Cinabrio Mine workings along the 180-metre level toward Cinabrio Norte. Further advancement toward mining remains subject to satisfaction of remaining technical, environmental, safety, and engineering requirements.

TD4 Reinforcement Program Completed, Nine-Month Operating Window Secured

The TD4 reinforcement and improvement program incorporated engineering measures designed to improve structural performance and stability, along with enhanced monitoring systems. SERNAGEOMIN's authorization permits the temporary operation of TD4 for approximately nine months to accommodate thickened tailings discharge while the tailings filtration plant is constructed and commissioned. The release states BMR is currently reviewing the design and execution plan for the tailings filtration plant with a view to optimising associated capital costs, though no specific capital figure was disclosed in the announcement.

Long-Term Tailings Management Anchored by Ten-Year Filtration Plant Approval

The tailings filtration plant holds an authorization to operate for ten years and, following construction and commissioning subject to applicable permit conditions, is intended to provide Punitaqui with a long-term tailings management solution. The disclosure suggests TD4's nine-month window is structured as a bridge to the filtration plant becoming operational. BMR's stated strategy centres on safely and efficiently advancing Punitaqui while optimising the use of existing infrastructure, with the filtration plant representing a cornerstone of that long-term operational plan.