Thank you, Kurt. Turning to Slide 8. I'll provide additional detail on our third quarter financial results. Total sales for the quarter, including our proportionate 50% share of sales from the Zeolyst Joint Venture were $210 million, compared to $260 million for the third quarter of 2022. Of the $50 million change in sales, $39 million was driven by the pass-through of lower sulfur costs, with the balance of the sales decrease largely the result of lower sales volume for virgin sulfuric acid used in the production of nylon intermediates and lower sales of silica-based catalyst used for polyethylene production. This was partially offset by continued strong pricing in both businesses and higher sales of hydrocracking catalysts and catalysts used in renewable fuel applications. Third quarter adjusted EBITDA was $68 million compared to $75 million in the prior year. The decrease was a function of lower sales volume, as noted and higher operational costs, associated with increased manufacturing and networking costs arising from the previously discussed Dominguez production outage in July. The adjusted EBITDA margin for the third quarter was 32%, up 330 basis points with the margin uplift primarily driven by the impact of the pass-through of lower sulfur costs, along with favorable pricing, partially offset by higher manufacturing and networking costs. As we move to the next slide, I'll highlight the primary components of the change in adjusted EBITDA compared to the prior year's third quarter. As was the case in the second quarter, average sulfur prices in the third quarter of 2023 were significantly lower than in the prior year. Pass-through of these lower sulfur costs had an aggregate impact of $39 million in variable costs, with a corresponding reduction in average selling prices. As such, the lower sulfur cost pass-through on sales during the quarter had no impact on adjusted EBITDA. The largest contributors to the reduction in adjusted EBITDA were lower sales volume, along with the higher variable cost in the quarter. The higher variable costs were primarily a result of the additional networking costs and higher energy costs associated with planned maintenance. These factors were partially offset by higher pricing in the quarter. Let's now turn to our segment results, starting with Ecoservices. Third quarter sales for Ecoservices was $148 million, compared to $196 million in the third quarter of 2022. Of the change in sales, $39 million relates to the pass-through of lower average sulfur costs. The balance of the sales decrease was driven by lower demand for virgin sulfuric acid used in the production of nylon intermediates and, to a lesser extent, lower spot virgin sulfuric acid sales. Adjusted EBITDA for Ecoservices was $55 million in the third quarter, compared to $64 million in the prior year, with the decrease primarily driven by the lower sales volume as well as the anticipated higher manufacturing and networking costs arising from the Dominguez production outage that occurred earlier in the quarter. For the third quarter, Ecoservices adjusted EBITDA margin was 37%, up 430 basis points. The margin increase was largely driven by the pass-through of lower sulfur costs, partially offset by higher costs in the quarter. Total sales for Catalyst Technologies in the third quarter, including our proportionate share of Zeolyst Joint Venture sales were $63 million, compared to $65 million in the third quarter of 2022. Silica Catalyst sales for the third quarter were $26 million, down $11 million on lower demand for polyethylene catalyst and the absence of niche custom catalyst sales. As a reminder, certain sales of niche custom catalysts are event-driven and may be replaced every 2 to 3 years. Third quarter sales for the Zeolyst Joint Venture were $37 million, up $9 million or 33%, with higher sales of hydrocracking catalysts and catalyst used in renewable fuel applications. Adjusted EBITDA for Catalyst Technologies was $16 million in the third quarter, down $3 million compared to the prior year. As pricing remained positive in the quarter, the decrease reflects the lower silica catalyst sales volume, partially offset by the continued strong pricing as well as higher sales of hydrocracking and renewable fuel catalysts. Adjusted EBITDA margin for Catalyst Technologies was lower, driven by unfavorable mix and higher costs, partially offset by increased pricing. Turning to the next slide. I'll provide a few comments on our cash and leverage position. We continue to maintain a balanced approach to capital allocation and reducing leverage to our target of 2x to 2.5x remains a key priority. That said, we will continue to be opportunistic but prudent as we evaluate our capital deployment options. During the third quarter, we repurchased 541,000 shares of stock through the open market for an aggregate amount of just over $5 million. At the end of the quarter, we held a strong liquidity position of $109 million. We ended the third quarter with a net debt leverage ratio of 3.2x, unchanged from the end of the second quarter. From a balance sheet perspective, we remain in excellent shape. We have one term loan, with a maturity date of June of 2028. In addition, we continue to effectively manage our interest rate exposure. We have 75% of our interest exposure capped through the third quarter of 2026, with an all-in cost of debt of approximately 5%. And we continue to evaluate opportunities to extend our interest rate protection. I will now go over our guidance and expectations for the balance of 2023. We now expect sales for the full year 2023 to be in the range of $675 million to $705 million, with a modest reduction from our most recent guidance range, reflecting an expectation for incremental demand weakness for virgin sulfuric acid sales into the nylon end use, the soft environment for the demand of polyethylene catalyst and the potential for a timing shift of some Zeolyst Joint Venture sales from Q4 into the first quarter of 2024. Accordingly, we expect sales to the Zeolyst Joint Venture to be between $150 million and $160 million for the full year. In light of the sales volume expectations and taking into consideration the incremental cost and sales impact associated with the pull forward of turnaround activity into 2023 that Kurt mentioned, we now expect full year 2023 adjusted EBITDA to be at the low end of our previous annual guidance range at approximately $260 million which is 6% lower than the prior year. At the segment level, for the fourth quarter, we expect Ecoservices adjusted EBITDA to be down mid- to high-single digits compared to the fourth quarter of 2022. Catalyst Technologies, however, is expected to be up significantly compared to the fourth quarter of 2022 at a level similar to their second quarter results. Overall, Ecovyst is expected to be in line with prior year fourth quarter, or at approximately $70 million. In terms of our cash flow, as we have highlighted previously, the nature of our business historically has provided for strong cash generation and we certainly expect this to continue going forward. However, we are revising our 2023 free cash flow mainly due to revised expectations for the timing of dividends from our Zeolyst Joint Venture prior to the end of the year and to a lesser extent, modestly lower expectations for adjusted EBITDA. As previously discussed, within the Zeolyst Joint Venture, we anticipate strong sales of hydrocracking catalysts in the fourth quarter, up close to 50% over the prior year fourth quarter. And for the full year, we expect to be up close to 40% year-over-year. As we have gained better visibility into the projected timing of these sales, we now expect that some sales may occur very late in the quarter. Considering normal receivable timing, collection of sales occurring late in the fourth quarter may extend into early 2024. In addition, with further insight into order timing that suggest stronger hydrocracking sales in the first quarter of 2024, we are now planning for a larger inventory build in the fourth quarter in advance of the anticipated strong first quarter hydrocracking sales. The revised expectations for receivable timing and the working capital needs, associated with the fourth quarter inventory build are now expected to alter the timing of dividends received from the joint venture. As a result, we now expect free cash flow to be between $70 million and $80 million. As the reduction in cash generation associated with the dividend from the Zeolyst Joint Venture is entirely timing related, we anticipate a comparative cash flow benefit in 2024. In light of the revised assumptions impacting cash generation, we expect to end the year with a net debt leverage ratio of approximately 3x. I will now hand the call back to Kurt for some closing remarks.