** Morgan Stanley expects European chemicals to face tariff uncertainty and weak demand in 2025, that could erase early optimism and extend the downturn into a fourth year
** The broker warns that if economic weakness persists into 2026, sector valuations could face further downside
** It forecasts global supply of secondary or by-product chemicals produced alongside primary one, so-called co-product, to grow at 3.1% CAGR through 2028, driven mainly by China and the Middle East
** This will keep upstream margins under pressure well into 2026, even if delays reduce that number to around 2%, the broker adds
** MS says its preference is skewed towards more downstream names, such as "overweight"-rated Akzo Nobel AKZO.AS, which it keeps as its top pick, and Syensqo SYENS.BR
** It cuts Solvay SOLB.BR to "underweight" from "equal weight" and Wacker Chemie WCHG.DE from "overweight to "underweight", citing shareholder payout risk