Harn Engineering Solutions Pcl. is a Thai Company uninterruptedly carrying out business more than 50 years, The 3 businesses consist of 1. Business Unit: Fire Protection & Safety, Air-Conditioning and Sanitary System 2. Business Unit: Refrigeration System and 3. Business Unit: Digital Printing System. The BU: Digital Printing is organized in 3 group as follows: – Coding Machines and Equipment for manufacturing/expiry date and lot number coding, UV Digital Inkjet printer and 3D Printer.