Celanese is a global specialty chemical company built around two core businesses: engineered polymers and acetyl chemicals. The Engineered Materials segment makes specialty polymer compounds — including POM, nylon, LCP, PBT, TPE/TPV, and UHMW-PE — and sells them into demanding applications in automotive, consumer electronics, medical devices, and industrial equipment. Rather than selling commodity polymer, Celanese works with OEM engineers to qualify specific material grades for specific parts, creating sticky, spec-driven revenue. The Acetyl Chain segment is one of the world's largest producers of acetic acid and vinyl acetate monomer (VAM), with a vertically integrated value chain running from methanol through acetic acid to downstream derivatives including emulsion polymers, redispersible powders, EVA resins, and acetate tow for cigarette filters. Engineered Materials earns premium margins through value-in-use pricing rather than raw material cost passthrough, with most of the value created in the compounding step rather than base polymer production. The Acetyl Chain earns on feedstock-to-product spreads, managing margins by flexing production across its global network and shifting mix toward higher-value downstream derivatives. Acetate tow is sold under multi-year contracts to tobacco companies, though volumes are in structural decline. Celanese carries significant debt from its 2022 acquisition of DuPont's Mobility & Materials business, and deleveraging is the company's top priority, funded by free cash flow generation, asset divestitures, and reduced capex.