Detailed design work and feasibility study for road improvement project No. 68 (NR68), Chong Chom/O samach – Samaraong – Klaranh. Kingdom of Cambodia, there is a starting point for the project at the intersection of Road No. 68 and Road No. 6 in Siem Reap Province (Km. 365+700) and Road No. PR2SR46 (the starting point of the old NR68) at Km. 364+900 from Road No. 6 intersects with Road No. 68 at kilometer 03+100, a distance of approximately 4.30 kilometers, ending at the Chong Chom border crossing point, Kap Choeng District, Surin Province. The total distance is approximately 120 kilometers to upgrade the road surface. and improve intersections drainage structure and road structures along the route.