Here's a supply chain vulnerability that should keep chipmakers up at night. South Korea makes about 70% of the world's DRAM memory chips through Samsung and SK hynix, and those fabs need hydrogen bromide gas to etch transistor structures. The raw material for that gas is bromine, and South Korea sources 97.5% of its imports from one place: Israel's ICL Group, which extracts it from the Dead Sea. Iran has been firing ballistic missiles into Israel's Negev desert for weeks, hitting Dimona and Arad, both within 35 kilometers of ICL's extraction and conversion complex. One lucky strike and the world's memory chip production could face an immediate, unfixable shortage.
The technical constraints are what make this scary. You can't just swap in chlorine-based alternatives because they lack the etching precision needed for advanced nodes. Hydrogen bromide achieves a polysilicon-to-oxide selectivity ratio of 100 to 1, while chlorine manages roughly 30 to 1. At the geometries Samsung and SK hynix work with, that gap means the difference between a working chip and scrap silicon. Industrial bromine already processed for flame retardants or drilling fluids can't be reconverted. Building new purification facilities takes years of permitting and qualification.
Yes, China produces roughly 40-50% of the world's raw bromine from Shandong Province. But that supply might as well not exist for leading-edge memory fabs. Achieving the 99.9999% purity required for sub-10nm nodes is technically difficult from Chinese sources, and U.S. export controls block Chinese raw materials from chips destined for Western markets anyway. The result is a grim paradox: there's plenty of bromine in the world, but the high-end semiconductor ecosystem can't touch most of it.
War risk insurance for ships calling at Israeli ports has already jumped from 0.2% to as high as 1% of vessel value per call, adding up to $500,000 per voyage on a mid-sized cargo ship. ZIM, Israel's main shipping line, has slapped a war risk surcharge on all cargo. Haifa's oil refinery shut down after Iranian fire damaged its power station, proving you don't need a direct hit on a facility to knock it offline. Alvin Camba, who wrote the original analysis for War on the Rocks, warns that policymakers haven't acted on this vulnerability even as it sits within missile range. The world's most advanced memory chips depend on a chemical pulled from a shrinking lake in an active war zone. That chokepoint deserves more attention than it's getting.