Thanks, Carla. Good morning, everyone. Our business continues to perform well, generating solid free cash flow to fund debt reduction and growth opportunities. We generated operating cash flow before changes in non-cash working capital of $132 million in the first quarter, a 64% increase in the first quarter of 2017. We've adjusted our net debt position by $38 million from end of the year to $585 million at the end of the first quarter. Our total liquidity, including cash and available credit facilities was $810 million, up from $778 million at the end of last year. Our operations continue to perform well. After confirming a positive grade bias at Constancia last year, we filed a new technical report and mine plan in late March. The updated mine plan shows an increase to the total metal contained and the estimated mineral reserves and an anticipated production increase of 25% from years 2022 to 2025. In Manitoba, we are focused on completing the ramp-up of base metal ore production at Lalor mine and beginning production from the gold zone, both of these initiatives progressed during the first quarter. Cashel will be providing a more detailed update on the Lalor Gold Zone later in the call. And at Rosemont, we are continuing to progress through the final stage of the permitting process. Taking a closer look at the first quarter results, consolidated production of all metals decreased from the fourth quarter 2017, reflecting lower mine grades in both Peru and Manitoba in accordance with the various mine plans. Consolidated cash cost, net of byproducts increased from $0.77 per pound of copper in the fourth quarter of 2017 to $0.98 as a result of lower copper reduction and lower zinc byproduct credits. Consolidated all-in same cash cost, net of byproducts was $1.45 per pound of copper, which was slightly lower than the fourth quarter due to lower sustaining capital expenditures in Peru. Net profits and earnings per share in the first quarter were $41 million and $0.16, respectively, compared to a net loss and loss per share of $10 million and $0.04, respectively in the first quarter of 2017. Operating cash flow before change in non-cash working capital increased to $132 million compared to $81 million in the first quarter of 2017, mainly as a result of higher copper sales volumes and higher realized prices of ore metals. As we disclosed in our updated technical report on Constancia, we now expect mining of the Pampacancha deposit to begin in 2019. As such, we expect Peru precious metal production will be 50,000 to 70,000 ounces in 2018, a reduction of 15,000 ounces compared to our initial 2018 guidance issued in January. The majority of the estimated $45 million of Peru growth capital, which includes expenditures for developing the Pampacancha deposit and acquiring surface rights in local community is expected to be deferred to 2019. Based on results to date, we expect to meet all other production and cost guidance for 2018. The Constancia mine produced approximately 32,000 tonnes of copper during the first quarter, which was lower than the fourth quarter, primarily due to lower grades in line with the mine plan. Total copper recovery was 80.7% in the first quarter compared to 82.1% in the fourth quarter. Recoveries in the first quarter were affected by higher than usual quantities of oxidized material in the ore feed. We're continuing to pursue improvements in process recoveries as contemplated in our recently filed technical report for Constancia. Combined mine, mill and G&A unit operating costs were $8.92 per tonne in the first quarter compared to $9.75 per tonne in the previous quarter. The lower combined unit costs are mostly related to higher mill throughput, together with lower milling costs following completion of maintenance work in the fourth quarter. The Manitoba operations produced approximately 29,000 tonnes of zinc, 7,700 tonnes of copper and 30,000 ounces of gold equivalent precious metals during the quarter. Ore mined during the first quarter 2018 increased by 10% compared to fourth quarter as a result of higher production at the Lalor and Reed mines, while ore processed during the first quarter was in line with the previous quarter, both of which were affected by cold winter weather and challenges in managing ore stockpiles in those conditions. Manitoba combined mine, mill and G&A units operating cost in the first quarter were higher than the fourth quarter, mainly due to higher cost at Hudbay's mines in the Flin Flon concentrator. Combined unit costs are expected to be within the guidance range for 2018 as the higher cost in the first quarter were caused in part by the colder than normal winter. Manitoba cash costs and sustaining cost, both net of byproduct credits increased from the fourth quarter 2017 to the first quarter 2018 as a result of higher operating costs, which is byproduct credits and lower copper production. We are on track to increase Lalor's production rates to 4,500 tonnes per day by the third quarter of 2018. The commissioning of the paste backfill plant, which is on track for mid-2018 is expected to improve scoop availability and provide flexibility to the mine planning and sequencing. Ore mined at Lalor increased as the ramp-up of production continued and the mine transitioned to higher gold and copper grades with lower zinc as outlined in the life of mine plan. I'll now turn over to Cashel Meagher to provide an update on our recent progress and plans for the Lalor Gold Zone. Cashel?