Thank you, Angelica, and thanks to everyone for joining us this afternoon. With me today is Teddy Gottwald, our Chairman and CEO. As a reminder, some of the statements made during this conference call may be forward-looking. Relevant factors that could cause actual results to differ materially from those forward-looking statements are contained in our earnings release and in our SEC filings, including our most recent Form 10-K. During this call, we may also discuss non-GAAP financial measures included in our earnings release. The earnings release, which can be found on our website, includes a reconciliation of the non-GAAP financial measures to the comparable GAAP financial measure. We intend to file our 2018 10-K toward the middle of February. It will contain significantly more details on the operations and performance of our Company. Please take time to review it. I will be referring to the data that was included in last night's release today. Now onto the fourth quarter results. Our profit before tax was $71.1 million, a 9.5% increase, compared to the profit before tax for the fourth quarter of 2017 of $64.9 million. With the Tax Reform Act on the quarterly earnings per share numbers, this profit before tax number is a good way to compare our periods. The next set of numbers I'll mention does include the impact of the Tax Reform Act. Net income for the fourth quarter of 2018 was $62.8 million, or $5.58 per share, compared to net income of $4.1 million, or $0.35 per share for the fourth quarter of 2017. Income tax expense was $8.3 million for the fourth quarter of 2018, compared to $60.9 million for the fourth quarter of 2017, and $55.6 million for 2018, compared to $124.9 million for 2017. The main driver for the difference between the comparative periods was the additional income tax expense in the fourth quarter of 2017 of $31.4 million related to the enactment of the Tax Reform Act, primarily due to a one-time deemed repatriation tax on untaxed accumulated foreign earnings. In addition, the Tax Reform Act reduced the US corporate tax rate to 21% beginning in 2018. Petroleum additives operating profit for the quarter was $79.5 million, up 7.2% versus the fourth quarter of 2017. Sales for the quarter were $537 million, down 3.5%, compared to the sales for the same period last year, primarily due to lower shipments, which were down 10.2%, compared to the same period last year. Shipments decreased -- shipment decreases were in both lubricant additives and fuel additives. All regions except Asia-Pacific, which was the decrease in lubricant additive shipments; and Latin America was the only region reporting an increase in fuel additive shipments. During this past quarter, in addition to funding $20 million of dividends, we spent $20 million on capital expenditures in support of our long range capital plan and repurchased $83 million of stock. Turning to the full-year. Our profit before tax in 2018 was $290 million, down 8% versus 2017. Petroleum additive operating profit was $311 million, down 9.9% versus the prior year. Throughout 2018, we continued to see downward pressure on our operating margin, due mainly to the steady increase in raw material cost over the past two years. While our efforts have been focused on recovering these cost increases, we have been experiencing the lag between when raw material costs increase and price increases go into effect. Margin recovery will be a priority throughout 2019, so that we will gain -- again be consistent with our historical ranges. Petroleum additives, full-year shipments were down 2.8% in 2018, compared to the same period last year with decreases in both lubricant additive and fuel additive shipments. All regions except Asia-Pacific contributed to the decrease in lubricant additive shipments and Latin America was the only region reporting an increase in fuel additive shipments. Along with our substantial investments in petroleum additives from both a capital and research and development perspective, we returned $312 million to our shareholders through dividends of $80 million and stock repurchases of approximately 603,000 shares at a cost of $232 million. We ended the year with a very healthy balance sheet and with a net debt to EBITDA ratio of 1.8 times. As we have stated before, we are comfortable maintaining net debt to EBITDA in the 1.5 times to 2 times range. In 2019, we expect to see capital investments similar to our 2018 spend in the $75 million to $85 million range. Petroleum additives continued its steady performance as we continued to extend the reach of our products and services across the globe. Our newly expanded Singapore plant is running smoothly and our Mexico plant and the 2017 AMSA Acquisition is proving to be a great addition to our supply system. We have seen significant revenue growth maintained, measured cost control and continued to make internal progress on cost -- our cost to serve efficiencies across the enterprise. Unfortunately, we continue to see and face rising raw material costs throughout much of the year and this led to margin compression which overshadowed much of the progress as we did additive light volume in the fourth quarter. Our stated goal is to provide a 10% compounded return per year for our shareholders over any five year period defined by EPS growth plus our dividend yield. And the implication of this goal is that we may not necessarily achieve the 10% return each year. While we're well aware that we didn't achieve this goal in 2018, we are very committed to providing this level of return to our investors. Our business continues to generate significant amounts of cash and our priorities for using cash remain the same. We invest in the business for growth, fine acquisitions that strengthening our competitive position in petroleum additives and reward our shareholders through dividends and stock buybacks. As we look ahead to 2019, we expect to build on the successes of last year with a continued emphasis on the margin recovery. It should be a solid year for the petroleum additive segment and the Company as we are well-positioned for the long-term. We continue to focus on research and development to bring higher value products to our customers and we will continue to improve quality and cost to be more efficient serving the market. We appreciate your support. Angelica, that concludes our planned comments.