William M. Zisch
Analyst · Goldman Sachs
Thank you, Tony. Slide 5 provides a production and revenue waterfall comparing the current March 2014 quarter with the December 2013 quarter. I'll focus my comments on operational performance from our 10 central properties, and will include comments regarding the calendar year 2014 guidance that the operators of our producing properties have provided. After that, I will summarize the results of our 2013 year-end reserve statement that was released today. Finally, I'll discuss Mt. Milligan's ramp-up and timing of shipments.
Compared to the December 2013 quarter, the gold price was up about 1%. With silver down 2% and copper virtually unchanged, the difference in our portfolio's revenue from the preceding quarter was driven primarily by production changes. The 8% increase in production was realized through the continued ramp-up of Mt. Milligan, a return to mining and shipping of material from our area of interest at Cortez, and increased production at the Holt mine following the December quarter, when planned outages were completed. These increases more than offset reductions in production at Robinson and Andacollo.
On Slide 6, we've summarized the operator production guidance for calendar year 2014, compared to the actuals through March 31.
At Teck's Andacollo mine, recorded production was 17% lower than the previous quarter, as mining progressed into a lower-grade area of the pit, as planned. The gold grade is forecast to improve slightly for the second half of 2014. Based on Teck's operating guidance, we expect Andacollo to produce 38,500 ounces of payable gold, subject to our interest, during calendar year 2014.
Osisko reported production from our royalty area at the Canadian Malartic mine that was 5% higher than the previous quarter. The mine overcame an unscheduled 4-day shutdown to repair loose liners in the SAG mill, with overall gold production setting a new record in the March quarter. Osisko's overall guidance for the Canadian Malartic mine during calendar 2014 is 525,000 to 575,000 ounces, with production from our area of interest expected to be front-end weighted at 344,000 ounces.
As most of you are aware, Osisko has been party to recent merger and acquisition discussions. Royal Gold's 1.5% NSR on Canadian Malartic is unaffected by potential changes of control.
At Cortez, production from our area of interest increased almost three-fold over the December quarter, as Barrick continued to return its surface mining activities to the Pipeline and Gap regions that are covered by our royalty interest. Additionally, after deferrals in the third and fourth calendar quarter of 2013, Barrick resumed shipments of roaster ore stockpiled at Cortez to Goldstrike for processing. For calendar 2014, Barrick's forecast for production from our area of interest, including stockpiled ore, will total about 276,000 ounces from our GSR3 royalty; 125,000 ounces from GSR1; 151,000 ounces from GSR2; and 228,000 ounces from our NVR1 royalty.
Reported production at Holt increased 36% over the previous quarter, as St Andrew ramped up production from the Holt mine. Holt ore tonnage processed increased 38%. Head grades were down slightly, and mill recoveries were at their expected level of approximately 95%. For calendar year 2014, St Andrew expects production from the Holt mine to be about 66,000 ounces.
Las Cruces reported production increased 11% over the December quarter. Efforts have been underway to test and debottleneck the plant for higher throughput rates to offset the lower grades, which are expected in late 2014. Commissioning of a second leach pre-reactor in 2013, along with several other 2014 initiatives, including improved tailings, filtration and the addition of new pressure filters, are expected to improve copper recovery by about 3%. For calendar year 2014, First Quantum expects production at Las Cruces to total 152 million to 159 million pounds of copper.
Reported production at Alamos Gold's Mulatos mine decreased 14% over the preceding quarter, as the mine experienced lower grades, as planned, from the Escondida deposit. Alamos began underground mining of the Escondida Deep deposit in the March quarter and expects to transition to production from the San Carlos deposit in the second half of 2014. Underground throughput rates at San Carlos are expected to gradually ramp up to an expanded mill capacity of 800 tons per day. Full year guidance at Mulatos is set at between 150,000 and 170,000 ounces.
Reported gold and silver production at Peñasquito decreased 19% and increased 15%, respectively, over the previous quarter, while production of lead and zinc decreased 4% and increased 28%, respectively. Peñasquito is now in the high-grade portion of Phase 4, and mining in this phase will continue throughout 2014. Goldcorp completed a new life-of-mine plan at Peñasquito that positively affected the 2014 and 5-year production profile of the mine. Goldcorp guidance for Peñasquito in calendar year 2014 calls for production of between 530,000 and 560,000 ounces of gold. 2014 guidance for Peñasquito's others metals are shown in the table in Slide 6.
Reported gold and copper production at Robinson was down 55% and 52%, respectively, over the previous quarter, as the planned mine sequence continued in the Liberty pit, which has lower-grade copper. KGHM expects that mining will return to the higher-grade Ruth pit in the second half of fiscal 2014.
Reported nickel production was up 40% and copper production was down 63% due to variability of shipment timing and seasonality at Voisey's Bay. For calendar year 2014, there is limited forward-looking information publicly provided by the operator, but we know that 2013 calendar year production at Voisey's Bay totaled 138 million pounds of payable nickel and 88 million pounds of copper.
As stated in our reserve release this morning, net gold reserves attributable to Royal Gold at the end of 2013 totaled about 5.3 million ounces, versus year-end 2012 reserves of 5.7 million ounces.
On Slide 7, we've put together a table to illustrate the Mt. Milligan gold deliveries and sales to Royal Gold. During the March quarter, Thompson Creek made 3 shipments of copper and gold concentrate under its sales agreement and received provisional payments for 2 of those shipments. Due to timing and provisional payments from the smelters to Thompson Creek, we've received deliveries of gold ounces from 1 of the 3 shipments for 4,080 ounces in the quarter and a delivery related to final settlement on the first purchase from the December quarter of 700 ounces.
Thompson Creek reported that the third and fourth shipments were also made in March. Subsequent to the quarter end, Royal Gold received delivery of 10,700 ounces of gold associated with provisional payments for these shipments. I should point out that Thompson Creek reports metal production on a payable basis, and we are paid on a contained basis, so the gold subject to our streaming interest will be slightly different than their production figure.
The Mt. Milligan mine reached commercial production, defined as operation of the mill at 60% of design capacity throughput, for 30 days on March 18. Thompson Creek's most recent public statements indicate that they expect the mill throughput will achieve 75% to 85% of design capacity by the end of 2014.
Annual calendar year 2014 gold production guidance for Mt. Milligan is 165,000 to 175,000 ounces. Applying a 97% payable factor and our stream interest of 52.25%, ounces that are expected to be delivered to Royal Gold are between 83,600 and 88,700 ounces of gold, with the timing of the purchase and sale of these ounces subject to Thompson Creek's shipment schedule.
Now, I'll turn the call over to Stefan to discuss the financial results.