Net Income Bridge – Q1 2023 to Q1 2024 $0.71 Adj. EPS $0.64 Adj. EPS Note: All amounts are in millions of U.S. dollars and are reported after-tax. First Quarter 2024 Earnings Results April 30, 2024 Providing innovative chemical solutions for a cleaner, healthier, more energy efficient world. Certain information in this presentation consists of forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Sect ...

Financial Data and Key Metrics Changes - The company generated positive free cash flow of $11.4 million, with capital expenditures returning to historical levels [2] - First quarter adjusted net income was $14.7 million, or $0.64 per diluted share, down from $16.4 million, or $0.71 per diluted share in the same quarter last year, primarily due to a higher effective tax rate [3] - Adjusted EBITDA for the first quarter was $51.2 million, a 5% increase year-over-year [15] Business Line Data and Key Metrics Changes - Surfactants segment net sales were $391 million, a 16% decrease year-over-year, with selling prices down 18% [16] - Polymer net sales were $146 million, a 10% decrease year-over-year, with volume increasing by 1% [18] - Specialty Products net sales were $15 million, a 33% decrease year-over-year, but adjusted EBITDA increased by 49% [19] Market Data and Key Metrics Changes - Global sales volume increased by 1% year-over-year, with strong recovery in volumes across core markets, excluding agricultural and phthalic anhydride [8] - Latin American surfactant volumes grew strong double-digits, with record volumes in Mexico [22] - The agricultural market experienced volume weakness due to continued inventory destocking [8] Company Strategy and Development Direction - The company is on track to deliver a $50 million cost reduction goal for 2024 through supply chain and workforce productivity actions [2] - The focus remains on improving operational performance and diversifying the customer base, particularly in Tier 2 and Tier 3 markets [23][24] - The company is investing in next-generation Rigid Polyol technologies to enhance energy efficiency in insulation products [24] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the strength and diversity of the business, anticipating gradual improvement in sales volumes due to recovery in Rigid Polyols and surfactant volumes [32] - The company expects to see a recovery in agricultural volumes in the second half of the year, which should positively impact EBITDA [55] - Management acknowledged ongoing operational issues at the Millsdale site but is focused on addressing these challenges [31] Other Important Information - The company paid $8.5 million in dividends during the first quarter and has $125 million remaining under the share repurchase program [11] - Construction on the new alkoxylation production facility in Pasadena, Texas is approximately 90% complete, with startup expected in Q4 2024 [28] Q&A Session Summary Question: Regarding operating income and surfactants margins - Management noted that adjusted EBITDA for surfactants was slightly up 4% year-over-year, with margin improvements despite agricultural mix headwinds [39] Question: Opportunities for maintenance at Millsdale plant - Management confirmed a long-term infrastructure reinvestment plan is in place for the Millsdale site, focusing on improving power reliability and addressing unexpected maintenance outages [41] Question: Impact of Millsdale outage on Q1 - The Millsdale outage had an estimated impact of $5.8 million on pre-tax income, split evenly between the Polymers and Surfactants segments [48] Question: Price mix number and expectations for stabilization - Management indicated that the majority of the 18% decline in price mix was due to pricing, with expectations for improvement as agricultural recovery occurs [50][52] Question: Customer confidence in agricultural business recovery - Management expressed confidence that agricultural demand will rebound post-destocking, with a 50-50 chance of recovery starting in Q3 or Q4 [53] Question: Outlook for adjusted EBITDA growth - Management suggested that while they do not provide formal guidance, they expect improvement in adjusted EBITDA in the second half of the year due to agricultural recovery [55]

Exhibit 99.1 Stepan Reports First Quarter 2024 Results Northbrook, Illinois, April 30, 2024 -- Stepan Company (NYSE: SCL) today reported: First Quarter 2024 Highlights "We are encouraged by the first quarter volume growth in several of our core end markets. Surfactants experienced double-digit volume growth within the Personal Care and Oil Field end markets and with our Distribution partners. As expected, Latin America Surfactant volumes grew double digits as we recovered Consumer volumes in Mexico. Rigid a ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (MARK ONE) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 1-4462 STEPAN COMPANY ANNUAL REPORT ON FORM 10-K December 31, 2023 | Item 1. | Business | 3 | | --- | --- | --- | | | Information About o ...

Financial Data and Key Metrics Changes - For the full year, adjusted net income was $50.7 million, a 67% decrease from $153.5 million in the prior year, primarily due to an 11% decline in volume driven by demand slowdown and inventory de-stocking [12][35] - Adjusted EBITDA for 2023 was $180 million, a decrease of 40% compared to a record year in 2022, largely due to volume reduction and lower overhead absorption [36] - Cash flow from operations increased to $175 million, representing a 9% growth compared to the previous year [13][39] Business Line Data and Key Metrics Changes - Surfactants segment reported net sales of $370 million, a 19% decrease year-over-year, with selling prices down 22% due to lower raw material costs and competitive pressures [22] - Polymers segment net sales were $147 million, a 1% decrease, but volume increased by 10% driven by a 12% increase in global rigid polyols [24] - Specialty products operating income decreased by 62% compared to the prior year, driven by lower volumes and margin contraction due to competitive dynamics [37] Market Data and Key Metrics Changes - Latin American surfactants volume grew strong double digits, recovering the business despite continued customer and channel de-stocking in the agricultural end market [15][23] - The agricultural business is expected to recover in the second half of 2024, following ongoing de-stocking in the first half [43][84] Company Strategy and Development Direction - The company is focused on cost reduction activities expected to deliver $50 million in pre-tax savings in 2024, which will help offset future inflation and increased expenses [28][44] - Strategic investments in new production facilities, particularly in Pasadena, are anticipated to enhance capacity and support growth in surfactants and polymers [50][51] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the strength and diversity of the business, anticipating improved volumes and margins in 2024 due to recovery in rigid polyols demand and lower raw material costs [43][45] - The company expects to generate positive free cash flow in 2024 as it approaches the end of its heavy investment phase [49][84] Other Important Information - The board declared a quarterly cash dividend increase of $0.01 per share, marking the 56th consecutive year of dividend increases [5] - The company has $125.1 million remaining under the share repurchase program authorized by the board [19] Q&A Session Summary Question: Insights on surfactants volume growth related to low 1,4 dioxane investment - Management confirmed that new contracted low 1,4 dioxane volumes have started shipping and are expected to grow as full capacity is reached [51][66] Question: Update on Millsdale facility and power disruptions - Management acknowledged operational interruptions due to power disruptions but noted improvements in resiliency from past investments [52][72] Question: Confidence in agricultural business recovery - Management indicated that destocking in agriculture is expected to continue in the first half, with a recovery anticipated in the second half of 2024 [73][84] Question: Context on Latin American business and competitive pressures - Management reported recovering market share and improving margins in Latin America, despite challenges from competitive imports [68][87] Question: Clarification on debt structure and interest costs - The company reported $654 million in gross debt, with 65%-70% being fixed at attractive rates [95] Question: Details on workplace productivity programs - Management highlighted that 70% of the $50 million cost reduction comes from operational improvements, with the remainder from workforce productivity [97][105]

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 1-4462 STEPAN COMPANY (Exact name of registrant as specified in its charter) | Delaware | | --- | (State or other jurisdiction of i ...

Financial Data and Key Metrics - Adjusted net income for Q3 2023 was $14.7 million, a significant decline from $46.3 million in the prior year [23][29] - Adjusted EBITDA for Q3 2023 was $48 million, down from $85 million in the prior year, primarily due to a 9% decline in sales volume [23][26] - Surfactant operating income was $15.4 million, down from $39 million in the prior year, driven by a 7% decline in global sales volume and lower unit margins in Latin America [26] - Polymer operating income was $21.8 million, down from $31.9 million in the prior year, with a 12% decline in global sales volume, particularly in Rigid Polyols [27] - Specialty Product operating income was $2.4 million, down from $9.7 million in the prior year, due to lower sales volume and unit margins within the MCT product line [30] Business Line Data and Key Metrics - Surfactant volumes grew by 2% sequentially, driven by double-digit growth in personal care and mid-single-digit growth in laundry and cleaning [41] - Polymer volumes increased 6% sequentially, with high single-digit growth in global Rigid Polyols, partially offset by a 25% decline in commodity PA business [37] - Specialty Product volumes were impacted by order timing differences, leading to a sequential decline in operating income [37] Market Data and Key Metrics - Latin America saw high-single-digit volume growth in Surfactants, but margins were pressured by competitive imports [24][26] - China's Polymer business showed strong double-digit growth in Q3, driven by market diversification efforts [61] - Agricultural end-market demand remained low due to continued destocking, impacting Surfactant earnings [33][64] Company Strategy and Industry Competition - The company is focusing on cost reduction, targeting $50 million in pre-tax savings in 2024 through workforce productivity and operational improvements [52] - Investments in low 1,4 dioxane production capacity and the Pasadena alkoxylation facility are expected to drive future growth, with the latter set to be operational by mid-2024 [25][55] - The company is diversifying its Polymer business in China, moving beyond traditional construction markets [7] Management Commentary on Operating Environment and Future Outlook - Management expects continued destocking in the agricultural market through Q4 2023, with recovery anticipated in 2024 [43][76] - Raw material costs are stabilizing, and the company expects improved margins in Q4 2023, except for the MCT business, which is still impacted by high-cost inventory [99] - The company anticipates a recovery in Rigid Polyols demand and growth in Surfactant volumes driven by new contracted business in 2024 [44] Other Important Information - The company paid $8.2 million in dividends in Q3 2023 and has $125 million remaining under its share repurchase program [28] - Inventory levels were reduced by $55 million in Q3 2023, with plans to further reduce inventories by $25 million in Q4 [25][48] - The company declared a quarterly cash dividend of $0.375 per share, marking a 3% increase and the 56th consecutive year of dividend payments [31] Q&A Session Summary Question: Customer acquisition trends across Tier 1, Tier 2, and Tier 3 customers - The company continues to see robust growth in Tier 2 and Tier 3 customer acquisition, though market demand and destocking in 2023 have offset some of this momentum [2] Question: Polyols segment margins and China's construction market - Polymer unit margins have stabilized, with sequential volume growth observed from Q1 to Q3 2023 [6] - The company has diversified its Polymer business in China, leading to strong growth in non-traditional markets [7] Question: Opportunities in spray foam and PA production - The company is actively pursuing new customer approvals in the spray foam market, despite overall market conditions [9] - There are no plans to produce PA at the INVISTA assets, as Millsdale remains the sole PA production site [9][10] Question: $50 million cost savings plan for 2024 - The savings will come from operational efficiencies, including logistics, procurement, and inventory management, with additional workforce productivity activities planned for Q4 2023 [13] Question: Impact of Pasadena plant startup costs - The Pasadena plant is expected to incur $7 million to $10 million in additional costs in 2024, with benefits from savings and productivity improvements expected in the second half of the year [62][63] Question: Agricultural destocking and its impact on Surfactants - Agricultural destocking has lagged other markets, with a double-digit decline in volumes impacting Surfactant earnings in Q3 2023 [64][79] Question: Long-term outlook for the Surfactants industry - The Surfactants industry has experienced unprecedented volatility due to supply chain constraints and inventory reconciliation, but the company remains confident in its long-term growth prospects [68][93] Question: Gross margin trends and raw material costs - The company expects gross margins to stabilize in Q4 2023, with raw material costs now aligned with market prices, except for the MCT business [99] Question: Cash flow and CapEx outlook for 2024 - The company expects CapEx to return to historical levels in 2024, with depreciation estimated between $130 million to $132 million [82]

Stepan S Cautionary Statement Earnings Call Presentation Second Quarter 2023 July 26, 2023 Certain information in this presentation consists of forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements include statements about Stepan Company's plans, objectives, strategies, financial performance and outlook, trends, the amoun ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 1-4462 STEPAN COMPANY (Exact name of registrant as specified in its charter) | Delaware | | --- | (State or other jurisdiction of incorp ...

Financial Data and Key Metrics Changes - The company reported adjusted net income of $12.1 million for Q2 2023, a significant decline from $53 million in the prior year, primarily due to a 19% decrease in sales volume [3][23][84] - Adjusted EBITDA for the quarter was $45.8 million, down from $96.7 million in the prior year, reflecting the decline in sales volume [22] - The effective tax rate decreased to 20% in the first half of 2023 from 25% in the first half of 2022, attributed to more favorable tax benefits [4] Business Line Data and Key Metrics Changes - Polymers segment net sales were $164.5 million, a 31% decrease year-over-year, with a 29% decline in volume primarily due to lower demand and inventory destocking [5][82] - Surfactants segment net sales were $392 million, a 19% decrease compared to the prior year, with a 15% decline in volume and a 5% decrease in selling prices [87] - Specialty Products segment net sales were $23.8 million, a 14% decrease year-over-year, with a 16% decline in volume [88] Market Data and Key Metrics Changes - The company experienced lower demand across most markets, with significant inventory destocking impacting sales [3][5] - The Asia region showed some improvement in demand following the reopening of China, partially offsetting declines in North America and Europe [5] Company Strategy and Development Direction - The company plans to reduce capital spending by $70 million to $80 million in the second half of the year and aims to decrease inventories by $40 million [7][8] - The company is focusing on long-term strategic growth and innovation initiatives, despite disappointing first-half financial results [8] - The construction of a new alkoxylation production facility in Pasadena, Texas is approximately 35% complete, with an expected startup in mid-2024 [90] Management's Comments on Operating Environment and Future Outlook - Management believes that the second half of 2023 will see incremental improvements in volume and margins, driven by a gradual recovery in demand and lower raw material costs [8][32] - The company anticipates that destocking activities are predominantly behind them, with expectations for a normal demand pattern in the second half of the year [56] Other Important Information - The company paid $8.2 million in dividends during the second quarter and has a remaining $125 million under its share repurchase program [84] - The company is implementing cost control measures, including a voluntary early retirement program, to improve earnings in 2024 [26][91] Q&A Session Summary Question: Volume trends in Surfactants and Polymers - Management indicated that they believe volumes have stabilized in both segments, with expectations for incremental growth in the second half of the year [11][12] Question: Import pressures in Latin America - Management noted that competitive pricing pressures and imports have impacted the Mexico business, while Brazil has experienced less pressure [47] Question: Customer acquisition environment - The company reported a higher level of churn in the Surfactant business but noted successful new customer acquisitions [51] Question: Nature of customer destocking activity - Management characterized destocking as predominantly in the agricultural segment, with expectations for a return to normal inventory levels by the end of Q3 [56] Question: Timeline for Pasadena expansion - Delays in construction have pushed the expected startup to mid-2024, but demand for the product line remains strong [59][60]