第一化成産業株式会社 develops and manufactures foam fire-extinguishing concentrates for foam suppression systems, alongside specialty gases and firefighting equipment. Its concentrates hold 日本消防検定協会 検定 型式番号 — DK Water aqueous film-forming foam under 泡第10～4号 and DK Fluoro Foam protein foam under 泡第19～28号 — as published in the 日本消火装置工業会 型式番号順一覧表. It is a 正会員 of that association and received a 2021 High-Pressure Gas Safety commendation from METI.