K-BATTERY SHOW 2026 was held from September 9 to 11, 2026, in Hall 7 of KINTEX Exhibition Center 2, with 185 exhibiting companies and 15,311 visitors over three days. The exhibition featured a special EV fire-response pavilion gathering fire prevention, detection, and suppression technologies, and the SFPE Korea Chapter’s “2026 International Lithium Battery and EV Fire Safety Seminar” shared thermal-runaway prediction and suppression technologies. This article treats line-level fire response as a closed loop of three serially connected segments (detection, isolation, and suppression) and shows that, in an assumed scenario, suppression-discharge delay accounts for 54 % of the loop’s total response time of 18.5 s. In other words, the performance…