Thanks, Keith, and good morning, everyone. Turning to Slide 8, value-added revenue for the first quarter of 2021 of $172 million increased $19 million or 12% compared to the second half 2020 run rate, demonstrating improvements in each of our end markets, driven by continued strength in demand for our general engineering, automotive, and defense applications. Adjusted EBITDA of $38 million increased $8 million compared to the second half 2020 run rate, reflecting higher value-added revenue and a cost structure more fully aligned with volume as we aggressively flex costs in operations during 2020. For the first quarter of 2021, we reported a solid 21.8% BITDA margin, reflecting strong operating leverage on increasing volumes. Comparing our strong first quarter 2020 results to the first quarter of 2021, value-added revenue declined by $45 million or 21%, reflecting the COVID-19-related impact in commercial aerospace demand mitigated in part by the continued strength in demand for our defense-related applications and stronger year-over-year demand for our general engineering and automotive applications. Adjusted EBITDA for the first quarter of 2021 declined $22 million compared to the prior-year quarter, reflecting the negative sales impact of approximately $26 million, partially offset by lower manufacturing and corporate overhead costs. First quarter 2021 EBITDA margin of 21.8% was down from the record 27.4% EBITDA margin in the prior-year quarter, reflecting the lower volume in operating cost. Turning to Slide 9, aerospace high-strength value-added revenue for the first quarter 2021 of $71 million improved slightly, increasing $2 million or 3% on a 23% increase in shipments compared to the second half run rate, which as a reminder, included approximately $15 million of additional revenue recognized in the third quarter of 2020, related to modifications to customer declarations under multiyear contracts. The increase in value-added revenue in shipments reflects continued strength in demand for our defense-related application and improving demand for business jets, as commercial aerospace demand while stabilizing, remains weak. Compared to our record first quarter 2020, aerospace high-strength value-added revenue for the first quarter of 2021 declined $59 million or 46% on a similar percentage decline in shipments reflecting the COVID-19 impact and our commercial space demand, which again was partially offset by continued strength in demand for our defense-related applications. Turning to Slide 10, compared to the second half 2020 run rate, automotive value-added revenue for the first quarter 2021 of $28 million demonstrated continued improvement, increasing $3 million or 11% on an 8% increase in shipments driven by the continued launch and ramp-up of new programs. Compared to the prior-year quarter, automotive value-added revenue for the first quarter 2021 increased $4 million or 15% on a 12% increase in shipments, reflecting continuation of the improving trend and demand, the ramp-up of new programs and a more favorable mix. Moving to Slide 11, general engineering value-added revenue of $72 million in the first quarter of 2021 increased $13 million or 23% on a 24% increase in shipments compared to the 2020 second half run rate, reflecting continued strong underlying demand and restocking in the supply chain. Compared to the prior-year quarter, general engineering value-added revenue increased $11 million or 18% on a 14% increase in shipments, reflecting strong service center demand, restocking in the supply chain and continued growth in underlying demand for semiconductor and automotive applications. Additional detail on value-added revenue and shipments by end market applications can be found in the appendix of this presentation. Moving to Slide 12, reported operating income for the first quarter of 2021 was $17 million. Adjusting for $7 million of non-run-rate charges including $11 million of Warrick acquisition fees and integration costs adjusted operating income was $24 million, down from $46 million in the prior-year quarter primarily reflecting the change in EBITDA as previously discussed. Reported net income for the first quarter of 2021 was approximately $5 million compared to $29 million in the prior-year quarter. Adjusting for non-run-rate items, adjusted net income for the first quarter of 2021 was $10 million compared to adjusted net income of $30 million in the prior-year quarter. The $10 million adjusted net income for the first quarter 2021 primarily reflected the impact of lower operating income and an increase of approximately $6 million of pre-tax interest related to our bond offering completed in the second quarter of 2020. For the first quarter of 2021, we recorded a tax benefit of approximately $300,000 primarily due to the impact of the Warrick acquisition on estate tax rates and related valuation allowances in addition to the recognition of excess tax benefits from stock-based compensation. Long term, we continue to believe our effective tax rate will be in a mid-20% under the current tax regulations. We anticipate that our cash tax rate will remain in the low-single digits until we consume our federal NOLs of approximately $95 million as of year-end 2020. As reported, earning per diluted shares were $0.28 in the first quarter 2021 compared to the $1.81 in the prior-year quarter. Adjusted earnings per diluted share was $0.64 and $1.90 for the first quarter 2021 and 2020, respectively. Turning to Slide 13, as Keith mentioned, on March 31, 2021, we completed the acquisition of the Alcoa Warrick LLC. We funded the $670 million purchase price with cash on hand in assumption of other post-employment liabilities. Total cash outflow at closing was approximately $624 million, which also reflected working capital adjustments and transaction fees. The final settlement amount is still subject to proposed closing adjustments, which are expected to be finalized by the end of the second quarter. As of March 31 and after reflecting the first quarter results and Warrick transaction costs, total cash of approximately $128 million and more than $360 million – $367 million of borrowing availability on our revolving credit facility provided total liquidity of approximately $495 million. There were no borrowings under the revolving credit facility during the quarter and the facility remains undrawn. With the addition of Warrick, we have revised our anticipated capital spending for the full year 2021 to be $75 million to $85 billion pending any further growth initiatives. We will continue to manage several back office support operations under transition service agreements with Alcoa through the remaining part of the year as we continue to complete our system integration processes and ramp up our support staffing. Furthermore, we anticipate an additional $3 million to $4 million of non-run-rate, onetime costs related to the integration to occur through the end of the year. And now, I'll turn the call back over to Keith to discuss our acquisition of Warrick and update our 2021 outlook. Keith?