Harn Engineering Solutions Public Co. Ltd. provides fire protection and air conditioning system. It specializes in wholesaling, retailing, and repairing, renting, leasing, contracting, and installation services of fire protection system and fire suppression agent, trading cold storage devices as well as trading, repairing, and renting of printing equipment. It operates through the following segments: Fire Protection and Sanitary Products and Projects; Sanitary and Air-Conditioning System; Cold Storage Devices; and Digital Printing System. The Fire Protection and Sanitary Products and Projects segment provides fire protection systems, industrial and petrochemical fire suppression and fire alarm systems, as well as security system. The Sanitary and Air-Conditioning System segment provides Oventrop, Weiss Instruments, Victaulic, Honeywell, Nibco, Valtec, and Procap Capacitors. The Cold Storage Devices segment relates to compressors, unit coolers, controllers, inverters, condensing units, refrigerants, fans, and accessories. The Digital Printing segment refers to the coding and marking solutions, digital UV Inkjet label press, ink, consumables, and accessories. The company was founded on May 9, 2001 and is headquartered in Bangkok, Thailand.