Bank of America Global Materials Conference Agustin Izquierdo Chief Financial Officer February 26th, 2026 Cautionary statement The statements in this presentation relating to matters that are not historical facts are forward-looking statements. These forward-looking statements are based upon assumptions of management of LyondellBasell which are believed to be reasonable at the time made and are subject to significant risks and uncertainties. When used in this presentation, the words "believe," "could," "int ...

Financial Performance - Service Revenue increased by 5.2% year-over-year in 9M25[9] - EBITDA grew by 6.7% year-over-year with a 50.3% margin in 9M25[9] - Net Income increased by 42.2% year-over-year, reaching R$ 3.0 Billion in 9M25[9] - Operating Cash Flow (OpCF) reached R$ 4.5 Billion in 9M25[9] Revenue Growth & Customer Base - Mobile Service Revenues grew by 5.6% year-over-year in 9M25[11] - Postpaid net adds increased by 414k in 3Q25, with Prepaid to Postpaid Migration YoY growth of 11.4%[13] - The number of cities with 5G coverage reached 1,000 in Brazil by October 2025[16] Efficiency & Cost Control - Capex on Revenues was 16.2% in 9M25, a decrease of 0.7 percentage points year-over-year[9] - Interactions through automatic channels increased by 1.4 percentage points year-over-year[33] - E-commerce sales grew by 20% year-over-year[33] B2B & IoT - Contracted revenue in B2B IoT reached R$ 435 Million since 1Q24[28] - Total hectares covered with 4G increased by 29.3% year-over-year, reaching approximately 23.5 Million hectares[28] Shareholder Returns - R$ 1.8 Billion was announced as Interest on Capital (IoC), and R$ 369 Million in shares were repurchased[9] - The company is set to meet the guidance of approximately R$ 2.1 to 2.3 Billion in IoC/Dividends[44]