Roque Ganoza
Analyst · Morgan Stanley
Thank you, and welcome to Buenaventura's end-of-the-year conference call. We are together, at this time, with Víctor Gobitz, who is our new CEO, but he has asked me to make the presentation, but he will be participating, and obviously, answering the questions that you may have, together with the management team of Buenaventura that's joined us this morning.
I will present with the presentation that we have submitted to investors. And so I will not be following the press release, as this presentation contains all the aspects that are included in this press release.
In the fourth quarter 2016 and for the full year 2016, we are very pleased to inform that production was in line with the guidance that we gave at the starting of this year. We have achieved lower costs and remain sustainable in terms of all-in sustaining cost of $846 per ounce, with a very positive results in our brownfield exploration, especially in Orcopampa and Uchucchacua, and we are quite excited about this result.
Tambomayo produced its first doré bar on December 30, and we have had the process of the ramp-up, and we expect that by the end of the first quarter of 2017, we will be in full production.
In the fourth quarter 2016, the EBITDA from Brocal was $23.9 million, showing an important improvement in this operation. As we have mentioned in previous conference calls, the ramp-up of Brocal has been quite difficult, and the team, led by Gonzalo Eyzaguirre, who is also present here, has shown results and the fact that we have generated positive EBITDA as of the end of 2016 with the declining metal prices has been a very positive aspect. We had to account for non-cash impairment of $388 million from Yanacocha that has taken us to a loss in our financials. But as I say, it's a non-cash impairment.
Full capacity and stable production in Cerro Verde, this is a star in the mining industry worldwide, and we are very pleased to be part of Cerro Verde. And Buenaventura net debt-to-EBITDA ratio has been reduced to 1.74x, in line with guidance. And in line with Buenaventura's dividend policy, a dividend payment of $0.057 per share will be declared as we are presenting.
The financial highlights show that the -- in terms of the fourth quarter, our revenues have increased compared to the previous year in the same quarter, 22%. And in terms of full year, we have increased our revenues in 15%. The EBITDA from our direct operations increased 309%, showing the efficiency of our own direct operation. And for the full year, 234%. We have done a great effort, and these figures are showing these efforts.
Our net income has, in terms of if we do not consider the impairments of Yanacocha for the full year, was $99 million positive. And the adjusted EBITDA, including the affiliates, has increased 64% for the full year 2016.
As you can see in the next page, #5, our net debt to EBITDA has been reduced substantially from the fourth quarter 2015, that was 5.33x, now it's 1.74x. Tambomayo completion will enhance more free cash flow starting the second quarter 2017. There is a better performance at El Brocal that will continue contributing to our EBITDA growth. And cash preservation remains a corporate priority.
Our cost reduction efforts show a sustainable result in all metals that let us concentrate on the all-in sustaining cost for gold. And comparing full year 2015 to full year 2016, the cost, the all-in sustaining cost, has reduced 32%, also a great effort from our operations people that have obtained these results.
Our attributable production declined in 2016, 16%, but we expect with the inclusion of Tambomayo, that our gold production will increase by 11% in 2017. We are working on that, and we expect to show results. Our silver production has been increasing constantly. From 2015 to 2016, it grew 11%, and we expect with the production from Tambomayo, to increase an additional 22% in 2017.
Our zinc production, coming mainly from Brocal, also increased 18%, and we expect an additional increase for 2017. Our copper production obviously increased due to the expansion and the production of Cerro Verde, and increased 93% from 2015 to 2016, and will increase further with all the adjustments, by another 35% in 2017.
Our gold mines, going mine-by-mine. Orcopampa has declined somewhat its production, and will probably decline somewhat more in 2017. But the results of the exploration, essentially in the Pierina -- in the Pucarina, sorry, Pucara and Pucarina veins, are showing very, very important results, and we expect to reverse this situation and maintain a level of production in the order of 200,000 ounces per year.
At La Zanja, we have produced similar to 2015, but we do expect that, that will decline somewhat in 2017. Coimolache has a strong performance and will continue at the same level of 150,000 ounces of gold. And obviously, the cost applicable to sales is a very competitive one, and we expect in that -- expect to continue in that way.
Yanacocha declined in 2016, 29%, and produced 655,000 ounces, but at a cash cost in the order of $841 per ounce.
Our silver mines have been quite efficient, and we have increased the production of Uchucchacua by 16% in year 2016 and will increase additional 3% in 2017.
Cash cost came down, or cost applicable to sales came down, and that is showing a very positive aspect for Uchucchacua. Mallay also increased 27% its production, and its cash cost also was reduced by 8% full year 2016.
The old Julcani mine will continue with the same level of production for 2017 and had a 3.3 million ounces of production in 2016, with a quite competitive cash cost applicable to sales of $11.62 per ounce.
In terms of our base metals, copper and zinc, the production at Cerro Verde obviously impacted positively because of the expansion. And what is even more important is that the cost applicable -- or the cash cost, came down by 20% because of this expanded capacity. Cerro Verde is a world-class deposit, and we expect to benefit from the results of Cerro Verde.
At El Brocal, we have increased our production in copper and in zinc, showing that the production profile is following the better management practices that we are applying, as I mentioned, led by Gonzalo Eyzaguirre, who's present here and that could answer any questions that you may have. The cost applicable to sales also has reduced in the case of copper. In the case of zinc, due to the grades, has increased somewhat, but still a competitive cost.
In terms of our projects, we have continued developing the San Gabriel project, updating the economic model with the 2016 explorations results that is showing us higher grades and that we need to expand the volumes, and that is what we are working on. The approval of the environmental impact assessment is expected in the first half of this year. And during the second half of 2017, basic and detailed engineering will be delivered. We are working on this project, and we expect to put it in production by 2019, probably, or by the end of 2019.
Trapiche project, the copper studies for the leachable copper are underway. We are working on a prefeasibility study, expected by 2018, to exploit the leachable material. We are reducing the amount of CapEx for this project and making it more feasible and developing by stages, leaving the sulfide by -- to be -- after exploiting the leachable material. We have installed a combined work group with the Mollebamba community, and this is always something that has to be taken in a very positive, but also very prudent way. We cannot force communities, we need to work with them in order to socialize the project.
In Yanacocha, it's important to mention that the Quecher Main, the decision to go ahead with the project, should be ready by the second half of 2017. And we expect production in the order of 200,000 ounces from this project.
Production between 2020 and 2025 should come mainly from Quecher Main, and the CapEx is in the order of $275 million to $325 million. And the Yanacocha sulfides are also in process, and the project added 2 million gold ounces to resources by the end of 2016. We had a meeting with the management of Yanacocha last Friday in Denver, and it really was a very positive conversation. Most of you have heard the conference call of Newmont and they mentioned Yanacocha. So we are far more positive on Yanacocha than we were in the last quarter. We are working on putting in value all the resources at Yanacocha.
With that, we are -- we had -- also, we had our Board of Directors yesterday, and we approved a dividend, as we mentioned. Obviously, we approved the Annual Report that will be submitted to the Shareholders Meeting, the financial statements as of December 31, 2016, the appointment of Ernst and Young as our external auditors and the election of one new member, a younger person, Mr. Diego de la Torres, and we will be submitting his bio to investors for the Shareholders Meeting. With that, we are open to any questions that you may have. Thank you.