OTK Royal One planned to develop Royal One Complex Project, in Phnom Penh, Cambodia. Power Construction Corp of China Ltd and Sichuan Huashi Group Corporation Limited were construction contractors. The project covered the construction of a 245 meter dual tower complex with 68 floors. The complex included five-star hotels, high-end residential buildings, office buildings and large shopping malls. The project would be a landmark in Cambodia upon completion. The project would strengthen the link between China and Cambodia.