Following on from earlier discussions about Nexa Resources (previously Milpo) being a possible JV candidate for Cerro Rayas. From the below looks like they are looking to expand and acquire and from what I can tell their closes mining project to Cerro Rayas is Pukaqaqa.
http://edgar.secdatabase.com/2426/110465918028667/g99281bg13i001.gif September 17, 2018 / Mining Nexa Resources plans to invest US $ 1,170M in mining projects in Peru and Brazil The closest venture to develop is Aripuana, a zinc mine in Brazil. The executive said that later they contemplate the exploitation of Peruvian projects such as Shalipayco, Magistral and Pukaqaqa. Nexa Resources has many projects in Peru, such as Shalipayco. (PHOTO: Mining Press) Mining company Nexa Resources plans to invest some US $ 1,170 million in copper and zinc projects in Peru and Brazil for five years, as part of the company's expansion plan, general manager Ricardo Porta told Reuters. The next venture to develop is Aripuana, a zinc mine in Brazil that would begin production in 2020, said the executive, who noted that the company then considers the exploitation of Peruvian projects such as Shalipayco, Magistral and Pukaqaqa. "We have seven projects between Brazil and Peru, the earliest is Aripuana, in which we are in the final stage of engineering, 95% .We hope to achieve final approval of the project in the coming months," said Porta in an interview during the Expomina forum. Aripuana implies an estimated investment of some US $ 354 million, said the executive. Nexa Resources operates the Milpo, Atacocha and El Provenir polymetallic mines in Peru, as well as the Cajamarquilla zinc refinery. In Brazil, it operates up to five units. Porta said that in Peru, the Shalipayco zinc project would be the first to be developed, starting in 2021. "We are in the feasibility of Shalipayco, then Magistral (copper), which is in the pre-feasibility phase and whose plan is to produce from 2022, "said Porta. "Pukaqaqa (copper) would follow the sequence in 2023." Investment in Peru would amount to some US $ 816 million - including some smaller projects - of which some US $ 555 million would correspond to copper operations and another US $ 216 million to zinc, he said. Regarding zinc, the most important exploitation of the company, the executive said that the plan is to maintain production at around 600,000 equivalent tons. 65% of the total corresponds to its operations in Peru, he said. Zinc production in Peru reached 185,300 tons in the first semester, below the level of last year due to a lower performance in Cerro Lindo. "The production in this mine fell because we are in full development of mine fronts and we expect a better second semester," the executive said. Porta said the firm's priority is to develop the projects and raise their reserves, which are growing at around 5% per year. This seeks to extend the useful life of Cero Lindo, which expires in 12 years. (Reuters)" Copied from the following website;
http://tiempominero.com/contenido.php?id=778
(20min delay)