Address: Room 781, 7th Floor, Building F, 1850 Center, Sihanouk Blvd (corner of Sothearos Blvd), Phnom Penh Categories: Construction & Maintenance Contact Information for Kosan Engineering (+855) 23 212 891 kosan@online.com.kh Comments (0) LEAVE A REPLY Cancel reply Please enter your comment! Please enter your name here You have entered an incorrect email address! Please enter your email address here Save my name, email, and website in this browser for the next time I comment.