WORLD City Co Ltd, the South Korean firm responsible for the design and construction of Cambodia’s first stock exchange, has still not received the go-ahead from the government on floor plans for the building, according to the firm’s Vice President Duk-kon Kim. Construction cannot go ahead at Camko City on the outskirts of Phnom Penh until the Ministry of Finance clears the architectural plans, he said Wednesday. The government has already passed plans for the main structure. Kim said it will take four months to complete the shell of the structure, which must be completed before the onset of the rainy season. The remaining interior work would take about the same amount of time to build, he added.