NewMarket Corporation Q4 FY2025 earnings call

• Pretax income in 2025 was $113,000,000 vs $134,000,000 in 2024; full year pretax income $561,000,000 vs $584,000,000. - Net income 2025 was $81,000,000 vs $111,000,000 in 2024; full year net income $419,000,000 vs $462,000,000. Decline due to higher effective tax rate. - Petroleum Additives segment faced market softness, lower selling prices, and inventory management impacts. - Specialty Materials segment grew due to Ampac volume and Calca acquisition. - Generated solid cash flows in 2025, returning $183,000,000 to shareholders via repurchases and dividends, reduced debt by $88,000,000.

Petroleum Additives: In 2025 Q4, sales were $585,000,000 compared to $626,000,000 in 2024 Q4; operating profit was $107,000,000 vs $136,000,000. Full year 2025 sales were $2,500,000,000 vs $2,600,000,000 in 2024; operating profit was $520,000,000 vs $592,000,000. Decline driven by shipments down 6% in Q4 and 4.9% full year due to market softness and strategic portfolio management. Specialty Materials: Q4 2025 sales were $49,000,000 vs $27,000,000 in 2024 Q4; operating profit was $7,000,000 vs $2,000,000. Full year 2025 sales were $182,000,000 vs $141,000,000 in 2024; operating profit was $47,000,000 vs $17,000,000. Increase due to higher volume at Ampac and inclusion of Calca Solutions acquired in 2025.

• Anticipate continued strength in petroleum additives and specialty materials segments. - Committed to decisions promoting long-term shareholder value, focusing on core principles for stakeholder benefit.

• Ongoing inflationary environment. - Impact of tariffs. - Market softness affecting shipments in Petroleum Additives segment.