Butene-1 market outlook remains compelling as the petrochemical sector transitions toward higher‑value downstream applications. The market scores strongly on attractiveness, driven by robust demand from polymerization, synthetic rubber, and emerging bio‑based feedstock projects, while supply growth is paced by incremental capacity expansions in North America and the Middle East. Competitive intensity is moderate; a handful of integrated majors dominate upstream production, yet niche players are gaining footholds through specialty grades and flexible contracts. Over the next decade, the long‑term outlook is positive, with CAGR expectations near 4 % as automotive lightweighting and packaging innovations lift consumption. Innovation is centered on catalyst efficiency, circular‑economy recycling loops, and hybrid blending with renewable olefins, expanding the value chain. Demand–supply balance is projected to stay tight but manageable, with inventories hovering at historically low levels. Key risks include feedstock price volatility, stricter environmental regulations, and geopolitical disruptions that could constrain new projects or shift trade flows.