Thanks, Jimmi Sue. I'd like to begin by sharing the notable happenings across our company during the first quarter. Now Koppers is happy to introduce our new Vice President of Culture and Engagement, Stephen Lucas, as seen on Slide 16. Stephen has nearly 30-years of experience developing innovative and bold employee programs at a number of leading manufacturing companies. For Koppers to continue to succeed, we must do all we can to attract world-class talent, develop our next generation of leaders and create an environment that inspires individuals to bring their best every day. Stephen is the right leader to strategically guide these critical culture and engagement efforts and we warmly welcome him to the Koppers team. Slide 17 features our first graduating class from Koppers college. This pilot program consisted of weekly sessions over a period of six months for qualifying hourly and non-exempt salaried employees who participate in these classes in addition to working their full-time jobs. These employees now have a Koppers business degree, which can open doors to new perspectives, new ideas and new opportunities within our company. Congratulations to all our Koppers college graduates. Slide 18 shows the progress that has been made to upgrade our facility in North Little Rock, Arkansas. The material handling system for the cylinders has been installed and will begin commissioning in May. Upgrades to the tie sorter, also to be completed in May, promise to significantly increase tie sorting capabilities at the plant. We have two of the three cylinders on site with the first cylinder scheduled to be in operation on October 1st and the next two are expected to come online later in 2022 in November and December. On April 22nd, Koppers team members worldwide celebrated Earth Day, as seen on Slide 19. A variety of activities were held at our facilities and in partnership with community organizations where we work. These efforts help to shine a light on the core Koppers value of protecting our planet. Now let's move on to an overview of the business sentiments, both near and long-term. I'll highlight the themes that we think are meaningful to our businesses moving forward. Slide 21 looks at important drivers for Performance Chemicals in 2022. With existing home sales down 2.7% in March from the prior month and 4.5% from the prior year and rising interest rates and inflation hampering the housing market, the purchasing power of those hoping to become homeowners has weakened, according to the National Association of Realtors. At the same time, existing homeowners are spending considerably more on home renovation and repairs to the tune of an 11.5% year-over-year increase in the first quarter, with an increase of nearly 20% projected later this year. There may be some leveling out in early 2023, with spending anticipated to reach $450 billion, according to the Leading Indicator of Remodeling Activity. The consumer confidence index improved to 107.2 in March, increasing from 105.7 in February as economic growth continued during the first quarter. However, The Conference Board warms us some potential weakening in consumers long-range outlook. As the pandemics effect lessen, residential demand in North America is returning to more normalized levels, although demand for contractors shows no signs of slowing down this year. Lumber prices also are normalizing from temporary highs as treating inventories remain thin and current orders are addressing the immediate demand. As the Penta preservative phases out, demand on the industrial side seems to be strong as we recently added a new utility customer and have additional prospects to further our market share expansion. Thus far, the only PC raw material affected by the Russia-Ukraine war is for our fire retardant products. Competitive supply chain issues in other product categories have opened a window for us to potentially achieve higher preservative sales. In the short-term, we're seeing margins being compressed by ongoing cost increases for materials. And although we've been building inventory to combat potential supply chain bottlenecks, we expect that by year-end we should be able to reduce working capital in our PC segment by at least $20 million. The longer-term outlook for PC is shown on Slide 22. Given the record high copper prices, we've been conducting price discussions with our customers sooner than we normally would. In the U.S., we're currently evaluating opportunities to implement changes to contract pricing, which would increase our ability to recoup higher input costs. As mentioned on last quarter's call, we recently entered into a five-year supply agreement beginning 2023 with the West Coast customer to provide 100% of their purchase requirements, which is up from 40%. In Australia, we recently were successful in securing an exclusive three-year supply agreement with a new customer. In North America, we expect to see the continued growth of industrial volumes of chromated copper arsenate or CCA as Penta gets phased out of the market. In addition, we continue to consider producing other oil borne products as alternatives to Penta, however, are still not at a decision point. In Brazil, we're working through the regulatory approval process regarding a greenfield manufacturing site and expect to have a plant in place and operational in 2026. In terms of expanding our presence in Europe for MicroPro, we're still in the process of obtaining regulatory approval for our next generation MicroPro product. We were recently issued a patent in U.S. for that next gen product, which will remain in force through early 2038 and we're moving forward to bring it to market over the next few years. The overview for our UIP business in 2022 is seen on Slide 23. Utility demand for poles remains high as project work is continuing to catch up after pandemic driven delays. Overall, logistics, labor shortage, plant conversions, along with the trend for a sturdier class of poles have put a strain on suppliers and resulted in longer lead times for product from the treatment industry. We're currently tracking higher than our targeted $8 million price increase for this year with $3 million occurring in the first quarter alone. That said, costs are rising across nearly all categories as well. Accordingly, we have been moving customers into more frequent price reviews given the rapidly changing cost environment. In early April, we completed our transition away from treating with Penta and most of our customers are adopting CCA or DuraClimb. In fact, 65% of former Penta volumes for Southern Yellow Pine utility poles are now being treated with preservatives that are produced in-house. According to the U.S. Chamber of Commerce, the manufacturing industry has lost approximately 1.4 million jobs since the onset of the pandemic, and it has been a struggle to hire workers. For Koppers, attracting and retaining plant employees and truck drivers remains an ongoing challenge as do the related costs and inefficiency from employee turnover. On the productivity front, our employees have worked hard to convert our facility from treating poles with Penta to treating with different preservative systems at Vidalia, Georgia and Vance, Alabama. In addition, we added new dry kiln to improve our capacity at our facilities in Vance and Newsoms, Virginia. On a combined basis, these projects are expected to bring an estimated $5 million of EBITDA benefits. The sale of our plant in Sweet Water, Tennessee will also benefit our bottom line. And while supply of wood remains relatively stable, we are seeing pricing pressure due to the high demand for small logs, stumpage increases, which is the price paid to harvest the timber, and freight costs. Therefore, we anticipate the cost will increase in the second quarter and we'll be addressing these issues. On Slide 24 is a long-term view for our UIP business. Given that more people are working remotely and there is an increasing frequency of extreme weather events, utilities need to maintain their infrastructure to avoid service interruptions. As a result, more utilities are trending towards stocking storm inventories of poles and, therefore, increasing their purchasing volumes over time. We anticipate that there will be continued shocks and disruptions to the supply of materials, such as wood, creosote and other preservative components. Consequently, this will make it more difficult for smaller and non-integrated treaters to compete as customers place a high value on the security of their supply sources. Being vertically integrated should provide Koppers with a competitive advantage in light of the Federal Infrastructure bill which allocated $119 billion for utility investments. We're in the process of adding peeling and drying capacity to serve our treating plant in Somerville, Texas. We expect this to result in improved cost efficiencies, which will contribute to increased profitability beginning in 2023. In addition, due diligence continues on a property to establish a base of operations in the Western U.S. to serve the industrial treating and wood preservation chemical markets, which have been untapped for us. In Australia, demand for poles remains high as it recovers from multiple natural disasters. We continue to shift volumes in Australia to softwood as hardwood availability becomes more difficult by adding a dry kiln at our Takura location last year. On Slide 25, we provide the 2022 outlook for our Railroad Products and Services business. The Association of American Railroads reports mixed data points for the first quarter of rail traffic compared with the prior-year quarter as U.S. carload traffic increased 2.6%, intermodal units were down 6.9%, and combined U.S. traffic dropped by 2.7%. We're targeting more than $20 million of price increases in 2022 to account for higher material costs and we're tracking at a higher rate so far with $7 million of that realized in the first quarter. We're projecting that demand for crosstie sales will increase 3% to 4%, which is higher than the forecast from the Rail Tie Association of approximately 2% growth. Lower year-over-year green tie purchases continued in the first quarter, but it looks like we're set for a rebound. Currently costs have stabilized, although at higher levels of $10 per tie or 33%, compared with prior year. There is a very strong likelihood of creosote supply disruption among treaters, which when it happens will provide a greater opportunity for Koppers, due to our vertically integrated business model and our ability to provide surety of supply. Similar to our utility business, we're still seeing trucking issues as lack of drivers and pent-up demand are limiting access and driving higher transportation costs. On our commercial business, crosstie volumes are down, but our profitability is up since price increases are going into effect prior to seeing the full impact of higher costs. Market dynamics in the commercial space continue to remain very competitive. Overall, we expect higher sales volumes for crossties and improved cost absorption to contribute an additional $4 million of EBITDA in 2022. In our maintenance of way business, we're beginning to see benefits due to improvements in labor and customer-specific challenges. This business is expected to generate $6 million of year-over-year improvement as markets continue to recover with all of that benefit to be realized over the last three quarters of this year. On the labor relations front, we successfully extended contracts at two of our facilities. In the coming months, we'll be working with the two remaining facilities to extend contracts that are scheduled to expire later this year. On Slide 26, we provide a longer-term view of RUPS. And we're pleased to have completed extensions for contracts with our Class 1 customers, moving most contract maturities to beyond 2025. We're working on various network optimization plans, which are positioned to drive EBITDA improvements, including the current expansion in North Little Rock to be completed in late 2022, which will strongly support volume growth in 2023 and beyond. As mentioned previously, we are also adding pole treatment capability at Somerville to support expansion into the pole market in that region. Due to our plan to purchase greater amounts of green ties to support volume growth, working capital will naturally increase, but be supported by higher profitability. At the same time, we're evaluating strategies to support a more consistent flow of green ties being processed in our facilities. We know that achieving our goal of having a steady flow of crossties will lessen the peaks and valleys that impact our business. At this time, we have the highest backlog in years for projects in our maintenance of way business. We're positioned for continued improvement as long as the railroads provide track time and we have crew continuity. To help with retention, we recently implemented a new compensation model for maintenance of way employees to better align our rewards with what that workforce values. In addition, we continue to be focused on expanding our crosstie recovery business to other Class 1 customers. Our CMC business sentiment, as shown on Slide 27, notes that demand is as strong as it has ever been. However, global supply chain and inflationary pressures provide cause for concern regarding an eventual slow down. The Russia-Ukraine conflict has caused European tar distillers to lose approximately 220,000 metric tons of tar on an annual basis. So far, we've been able to successfully mitigate supply constraints somewhat by accessing other sources for Europe. Tar and pitch remain a limited supply, causing prices to skyrocket to record highs. In China, pitch and tar prices are at high levels, which support higher product pricing in other regions as well as higher raw material costs. In Central Europe, aluminum producers have a curtailed production due to high energy prices, which is increasing competitive pressure in a smaller market, it's those curtailments that primarily affected our competitors' customer base. An increasingly smaller coal tar market is impacting creosote in North America, with less product being made and significant price hikes likely for non-contracted customers. Due to reduced availability of coal tar in the market, Koppers has reintroduced hybrid pitch in North America and our customers have responded favorably, accelerating its acceptance. We estimate that we will see a benefit of $8 million in EBITDA from our ability to improve the mix of our higher value pitch production, as well as the benefits from cost improvement projects. In the second half of 2022, we see potential upside as long as market dynamics perform as expected. According to IHS Markit projections, regarding global light vehicle, production in 2022 went down by 2.6 million units in March and were downgraded again in April, projecting further reductions of 900,000 units. The reduced production was attributed to Europe and China, while the forecast for North America remained flat. Slide 28 looks ahead for CM&C through 2025. And we expect that high demand should continue in the U.S., driven by the aluminum and steel markets. The federal infrastructure bill should support long-term demand, although some recessionary concerns have begun to appear. On the other hand, we are poised to benefit as reliance on Chinese exports drops and worldwide shipping logistics improve. Industry efforts continue to reduce or eliminate coke from steel making, including direct reduced iron and electric arc furnaces, all of which will reduce coke production further, resulting in less domestic coal tar and increasing pressure on remaining small distillers. The announced closures by Cleveland Cliffs regarding two other coke facilities has added further limitations to the domestic coal tar market. This is where our hybrid pitch products can fill a gap in the market created by lower production levels of our traditional raw materials. And then also, while we're working on product development projects that are designed to increase sales and profitability, which include: improving pitch yields from tar from 50% of production to nearly 70%, which I mentioned previously as a component of the $8 million benefits in 2022, and enhanced carbon products used as a coatings for battery anode materials. And while the benefits of enhanced carbon products for battery coatings are not included in our 2025 projections, CM&C could be our highest margin business by 2025, if we succeed in gaining market acceptance of our products. On Slide 30, our sales forecast for 2022 is approximately $1.9 billion, compared with $1.68 billion in the prior year to reflect a projected topline improvement in every business segment, largely driven by higher prices. On Slide 31, our 2022 EBITDA projection remained at $230 million. On a comparable basis, this will be our eighth consecutive year of EBITDA growth. Once again, our diversified portfolio shows ups and downs across the three business segments. Our RUPS business hit a trough in 2021 due to a high number of factors, but strong underlying market fundamentals have us primed to significantly improve, albeit not as much as we had projected back in February. The hardwood recovery is not yet at the run rate it needs to be to generate the level of improvement we expected at the beginning of the year, although we still believe that 2022 will represent a giant step forward. In PC, we're continuing to show a small decline from last year, which is consistent with what we expected back in February. PC actually finished Q1 slightly ahead of where we thought they would. And while we expect a strong Q2 from PC, they are facing another record quarter comp which they will not be able to match. The second half of the year gets easier comparably, but the market dynamics need to hold up better than they did in 2021 and we don't believe that they'll claw all the way back to the last two years' $100 million mark of EBITDA. The wildcard could be the significant price increases that will go into effect on January 1st, 2023 that could impact Q4 purchases positively by pulling forward some volume and profitability into 2022. Finally, we're still expecting a year-over-year decline in CM&C EBITDA, but not quite as much as we were earlier this year. Despite the impact on supply from the Russia-Ukraine conflict, we believe its strong market dynamics can still support an environment that results in EBITDA that is relatively close to last year's performance as we are currently projecting CM&C to finish at around $70 million or $6 million below last year. Overall, we expect the timing of our results in 2022 to be the inverse of 2021 and the beginning of the year has started off with that pattern. Q2 will be more of the same before we begin to make up ground in Q3 and Q4, before finishing at our projected EBITDA for the year of $230 million. On Slide 32, our adjusted EPS guidance for 2022 is now expected to be approximately $4.10 compared with $421 in the prior year. While operations are additive to results, a higher effective tax rate is expected to take a sizable bite out of our overall improvement. All in, we still expect to generate strong performance of over $4 per share on an adjusted basis in 2022, which belies the unexplainable price earnings multiple that we continue to trade at, which is well below 10 times. Finally, on Slide 33, we continue to expect our growth capital proceeds from asset sales. We anticipate that our capital spending will be in the range of $80 million to $90 million, with approximately $29 million dedicated to growth and productivity projects. In summary, we remain focused on executing through our strategy to expand and optimize across all of our business segments and generate continued consistent financial performance as measured by adjusted EBITDA, adjusted EPS and free cash flow. I do believe that our balanced and diversified portfolio makes us a great defensive investment option in most economies as we have demonstrated ever improving performance over the past seven years through various disruptive market conditions, with a record that very few others can match. We will continue to control the things that are within our control, while telling our story and, at some point, it should resonate with those that appreciate results-driven performance. With that, I would like to pass the program over to Jim Sullivan, our COO and Jimmi Sue Smith, who will now take your questions. Thank you for all for dialing in and for your interest in Koppers.