Benzene

Benzene is the foundational aromatic, a six-carbon ring produced mainly in refinery catalytic reformers, recovered from the pyrolysis gasoline that naphtha crackers make as a co-product, and manufactured from toluene when economics justify it. Global demand is roughly 60 million tonnes a year. Its largest outlet is ethylbenzene for styrene, feeding polystyrene and ABS; cumene for phenol and acetone follows, on the route to polycarbonate and epoxy; cyclohexane feeds the nylon chain; and aniline feeds polyurethane intermediates. Benzene itself is a carcinogen, tightly regulated, which is why it leaves the gasoline pool as fast as refiners can extract it.

Benzene supply is hostage to two other markets. Because most of it is a byproduct of making gasoline and ethylene, benzene output rises and falls with refinery runs and naphtha cracker rates, not with benzene demand. The shift to light ethane cracking in the US cut pyrolysis gasoline supply, and flattening gasoline demand caps reformer output, so the US runs structurally short and imports benzene from South Korea, India, and the Middle East. Strong US gasoline blending seasons tighten the market further by bidding aromatics into octane, as happened sharply in the summer of 2022.

There is no liquid benzene futures market. Trade runs on monthly contract prices and spot deals assessed by S&P Global Commodity Insights and ICIS, quoted in US cents per gallon DDP US Gulf Coast and USD per tonne FOB Korea and CIF Northwest Europe, with a modest OTC swaps layer cleared against those assessments. The FOB Korea marker is the de facto global reference because Northeast Asia is the swing exporter.