X0609 4 2026-05-01 true 0001489393 LyondellBasell Industries N.V. LYB 0001964403 Conley Trisha L true 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, People and Culture false /s/ Lara A. Mason, Attorney-in-Fact 2026-05-01