Marimaca Copper (ASX:MC2) signed a non-binding memorandum of understanding with a sulfuric acid plant operator and supplier in the Mejillones industrial area to explore a framework for a joint venture (JV) to supply the Marimaca oxide deposit in Chile with future sulfuric acid requirements, according to a Wednesday Australian bourse filing.

The evaluation phase under the agreement includes a structured work program over an initial period of up to six months, during which multiple development alternatives will be assessed, the filing said. Subject to the results of the evaluation and the execution of definitive agreements, the parties may subsequently consider the

formation of a joint venture to develop, finance, construct, and operate a plant.

Marimaca completed the scheduled submission of the Marimaca oxide deposit's critical sectorial permits to the Servicio Nacional de Geología y Minería in April. This includes the closure plan, open pit mining method, and several additional approvals required for the construction of core project infrastructure.

Approvals are expected in the December quarter.

The company was granted its electrical connection authorization on May 13 by the National Electric Coordinator to the 110 kilovolts El Lince Line, located around 13 kilometers from the project area.