Thanks very much Pete. And thanks to all of you for joining us late this afternoon. If we can turn to Slide 3 please we'll get going. Just I’ll make a couple of quick comments about the macro environment before we get into the quarter and some of the other information. Commodity markets in general obviously continue to look for direction. This is certainly true of our markets. The issues in our market are generally consistent with all the other factors you're seeing out there in terms of the global economic uncertainty, whether it's slowing growth in China caused by trade tensions or other factors, geopolitical uncertainty, and we've got Brexit, Middle East, Iran, other factors, again all this. And the direction of U.S. interest rates, of course, the pronounced knock on impact they have on commodities prices. Recent trends on these matters have been generally positive as you've read over the last couple of weeks. That said, I think we can all agree the situation is highly changeable. And in that respect we're managing the company with what we feel is an appropriate degree of caution. Pete in just a minute will give you some more specific trends in our sector, but in a nutshell, the fundamental conditions are encouraging. The 2019 global deficit in primary metal will be at least 1.5 million tonnes, that's similar to the 2018 deficit. The forecast backing up that deficit assume only nominal demand growth in China and in the rest of the world. So we see more upside risk to that deficits and downside. The supply growth remains muted and inventory inventories continue to come down throughout the supply chain. It's especially important during these uncertain times that we maintain the stability of our plants. And our operations people have done a great job in this respect. Safety performance has been exceptionally good over the last quarter or two. Production metrics and efficiencies in the plants have been consistently favorable. We've seen very tight management of controllable costs. And I'll give you some detail by plant on all of this in just a couple of minutes. Craig is going to give you a lot of detail on financial performance in the fourth quarter and as usual in this call our expectations for 2019. But in summary, I think, you'll see the fourth quarter performance came in just a bit better than we had forecast when we talked to you last. As we expected the financial results were burdened by the continuing of normally high realized the alumina price by a metal price that generally fell throughout the quarter. These trends will continue in the first quarter as you know. We've talked about this at some length. As you know our realized aluminum costs i.e. flowing through our P&L are based on prices we paid some three months ago. So the recent fall in the price will only be reflected in our reported results beginning in the second quarter. Then it's important for you to understand you'll get this once you run your numbers based on the information that we have in the slides here. It's important for you to understand that beginning of the second quarter EBITDA will be positive even at spot commodity prices. That was even true before the run up in the LME that we saw today. And in addition, cash flow will no longer be burdened by the very high spending on the Hawesville restart. Bottom line, financial performance will begin to improve in Q2, again, Craig, will give you some more detail on this. And again that even assumes no change in current conditions, i.e. no change in a very high current alumina price. And when that price does return to its normal fair value and it will, obviously the financial results will improve significantly. The same time the company's liquidity remains strong. Again, I'll stop here and when I turn it over to Craig, he'll give you lots more on all this. Moving along, the restart of the three lines at Hawesville has been almost unconditional success. Most gratifying has been the exceptional safety performance. And I can't emphasize enough for those of you who know about a process like this, how complex it is. It involves the removal, rebuild and reinstallation of 330 individual reduction sales, a myriad of associated capital projects. All of this is occurring in close proximity to two pipelines that are fully operational. And this is a real testament to operations management, the success here. We couldn't be more proud of those folks. The project has also been completed according to budget and slightly ahead of schedule. And so the next decision will be the timing of the rebuild of the two lines that have never ceased operating. As we've told you these have been for at least the last two years, well past their expected lives, our intent remains to take one of these lines out of service for rebuild during the next month or so. The three new lines had been performing very well, but we want to just make sure that we can maintain some stability for a modest period of time just to mitigate any risk. We also need to complete the hiring process of five full line operation to get the plant to full capacity. We require about an additional 100 folks and obviously we want to get a little bit better picture of where the aluminum markets may be heading. Craig will give you a picture of what all this means from a production and cash flow standpoint in 2019 in just a couple of minutes. Moving along, as you saw a couple of months ago we announced we reached an agreement on the extension of the power contract from Mt. Holly. It's essentially a carbon copy of the arrangement we've had in place for the last two years. So those of you who follow the company are familiar with it. 75% of the power that we take is off system from natural gas generation, the remaining 25% we continue to be required to take from the local supplier. The weighted average pricing remains uncompetitive. The market power is quite attractive. If we were able to get to market power, the price we pay at Mt. Holly would be in the attractive part of the second quartile on the global power cost curve the smelters. The problem remains that the level power comes at more than double the price of the market power and we continue to be forced to pay a second transmission we all took a local supplier. We're obviously quite disappointed we couldn't get to a full break through at this point in time. This is the only issue to remind you that stands in the way of restarting the second potline and bringing the plant back to full production. For those of you who follow this issue you know that the environment relating to the local power supplier remains highly complex and changeable. And so we're monitoring events and looking for the right timing. Lastly, the company continues to have really good opportunities to increase our share in value added products markets. In most cases, we already possess the required production equipment and we certainly have the technical expertise to grow in these markets. You saw a tangible example of this development a couple of months ago when we announced the expansion of our billing capacity at Sebree. This did require the startup of some mothballed production equipment and hiring of several dozen people for the casthouse there. It is a great development for this excellent plant. And we're looking for more opportunities at Sebree and at the other plants. We continue to work with a variety of customers and trialing new products. And we're confident this will continue to produce incremental value-added margin over the years to come. Lastly, one quick comment on the industry structure before I turn you over to Pete to talk about the industry. As you know, a significant amount of surplus on economic capacity continues to produce around the world. Those of you who had a chance to read the recent comprehensive OECD report, know that it confirms the position that we've long maintained. And for those of you that haven't, that follow the sector, I'd highly recommend that you read it, or at least the executive summary of it. It concludes, again as we've been saying here, the last couple of years, that most regions of the world are providing support, which is encouraging, sustained, uneconomic and unnecessary production of primary aluminum. It's clear the issue won't go away by itself. It must be addressed by the state after fostering these imbalances. And in this environment the U.S. administration's response remains critical and highly appropriate. The remedy needs to remain in place until global overcapacity is solved. And this means all participants need to be subject to either a tariff or a quota. To us it's difficult to understand how anybody who has objectively read that OECD report could come to a different conclusion. And with that I will turn it over to Pete.