Thanks very much, Pete. And thanks to all of you for joining us this afternoon as always, if we could turn Slide 4 please. I’ll give a quick rundown on the last couple months, they’ve obviously been busy ones. And most importantly, as I’ll note in a couple moments, we had a very good quarter in the operations. Safety performance was acceptable and we had a generally stable process and good efficiencies across the department at each of the plants. Financial results for the quarter came in just as we had expected. As we had forecast, realized higher metal prices were significantly more than offset by raw material price increases. Carbon costs were up as expected and the same is true for the higher alumina costs and material purchased back when the market was high, as you will recall in the late months of 2017. This will actually go the other way in the second quarter results as the normalized prices that we saw at the beginning of the year go through our P&L. Of course, the markets move meaningfully since then and I'll comment on that in just a couple minutes. Against that higher alumina price, we captured only a portion of the higher metal price in the first quarter, and that's of course, due to the fact that most of our sales contracts, in fact virtually all of our sales contacts are priced on two-month lag. We will see close to that full amount in the second quarter, and Shelly in just a couple minutes will provide you all the detail on the various price movements both from Q4 to Q1 that we are reporting today. And then she will also give you some estimates on those same movements from Q1 to Q2. The alumina price did develop late in 2017 and early into this year precisely as we predicted. The index had come down from just shy of 500,000 metric ton to about $350, and based on a couple transactions that had been incorporated into the index. We think it still had a bit further to go. And as we believe there is a rational reference at the time of the alumina to the metal price. Of course there was an unexpected development in early March that sent the price quickly back to the prior levels in the high 400s. That of course is the Alunorte refinery in Brazil, which is forced by the authorities to curtail 50% of its production. This was due to a 100 plus year rain event and concern by the authorities relating to untreated waste water discharge. You've obviously read extensively about this. Alunorte as you now is the largest refinery in the world and the sudden removal of 3 million metric tons in the western world traded aluminum market of course had a very significant impact. The majority owner of this excellent refinery had studied the situation and said they believe the conditions are now safe to restart. We understand the discussions are ongoing and we firmly believe that logic dictates it's merely a matter of time before it restarts, refinery simply too important to the local economy. The industry was thrown into further uncertainty of course with the implementation of sanctions on various Russian entities and individual several weeks ago. And more recently, the deferral of the effective implementation date and a potential path for exemptions has caused the market to adjust in the other direction. So sitting here today, metals currently trading just about $2,300 a ton, the alumina price is posted at about $640, but the forward alumina price is down to $500 by the end of the quarter. Even that forward price represents over 20% of the aluminum prices, and that’s far above the level of ratable rational market. We continue to believe as the most industry participants at the right value for alumina is in the range of 16% to 17% of the LME price that would indicate mid-300 to the current metal price. Goes without saying, we're going to see price volatility based on actual developments and rumors here over the coming weeks and months. Century is well supplied for the coming months and we're working on longer-term plans should the current situation persist. We’ll obviously feel the financial impact as we do buy everyday as you know with reference to the index price, but we do believe this situation will be short list. We obviously reached another major milestone in the industry; one Section 232 tariffs became effective on the March 23. All primary aluminum imports today are subject to the tariffs, other than production in countries that have temporary exemptions. Thus far the tariffs have had an expected impact on the U.S. market with the immediate announcement of production restarts and I’ll comment in just a couple minutes on our own plans. The structuring of any exemptions to the tariffs were obviously to be critical to ensuring the continued realization of the administration's desired outcomes and thus far we're seeing exactly that. Couple days ago on Tuesday, the government announced that all exempted countries other than Canada, Mexico and the European Union had reached agreements in principle on quotas. Argentina later announced their quota will be equal to their three-year historical average level of imports and from what we understand any further exemptions for the remaining countries we based on that same concept that is limiting imports, historical levels or below. Exemptions for the identified countries structure this way will continue to backstop the administration's goal of supporting U.S. production restarts and importantly the long-term competitiveness of the industry in this country. The administrations clearly on record, as I'm sure that all primary aluminum imports will be subject to either tariffs or quotas and we're very confident no action that would dilute the tariffs and that objective will be taken. Bottom line we’re confident that will soon get through these two near-term issues. Number one, the finalization of the tariff regime and number two the clearing of a disruption is in the aluminum market. And for those reasons, we're proceeding a pace with our plan to restart the three curtail potlines at Hawesville. The restart activity is a proceeding on budget and ahead of the schedule planned. The first line will be restartded before July and reach its full 50,000 metric ton annualized capacity during the third quarter. We’ve also advanced the high companies plan to restart the last two curtail potlines on an accelerated time schedule. We told you last month, the plan should achieve full capacity by the back half of 2019 and we now believe we'll get there reasonably well ahead of that schedule. We're also very close to making a decision to invest in a new cell technology that we've told you about. There is a result of the five R&D sales continue to far exceed the modeled expectation. We’re currently finalizing all these plans and will provide you an update when we release our second quarter results and that will include of course the timing for the restart is the last two potlines when the incremental volume will come in and of course the timing of the spending. And for now Shelly will give you some data on what we expect the expenditure during the second quarter will be? Goes without saying that we’re proceeding with this program during some uncertain times, but as I said we’re confident in the resolution of the tariffs in the alumina situation is serious incremental value to our share owners to get this production online as quickly as practical. And as a reminder this program is quite flexible. We can moderate or even stop it literally on a day's notice. Lastly, we continue to search for a new power contract to enable the restart of the curtailed potline at Mount Holly. So let me remind you about the proposal that we made, we told you about this last time. We made a proposal that would have a purchasing 100% for the power requirements for the entire plant from the competitive wholesale market, and that of course would enable us to restart the critical potline. We pay the local power company in the same unit transmission fee, but obviously on significantly more power and we make a small additional payment that would be required to get power company's revenues from us equal to what they're receiving today under the current agreement. As you know the local power company has long said it is not able to let us import more power as they contend the use of the incremental transmission capacity, would hurt their other customers. They've recently publicly testified that they've never started to calculate how other customers may or may not be hurt. We've long maintained the data show, there would be no harm whatsoever. They've thus admitted, they have absolutely no basis for refusing our proposal. As you'd expect, we are a bit perplexed by this development, but we do remain confident that logic will ultimately prevail. And with that, I'll turn it over to Pete to give you some data on the industry.