A long-established Korean fire and disaster-prevention engineering company (한방유비스, with roots to 1947) offering fire-protection design and supervision, performance-based design (성능위주설계) consulting, and a Fire Safety Research Institute plus an AI/big-data R&D centre. Its PBD work combines fire-load and evacuation planning with CFD and evacuation simulation to set building-specific fire strategy. Findings support, not replace, professional judgement.