A MULTI-STOREY building for China's Foreign Ministry is to be built on a government site in Mid-Levels for use after 1997. Li Ka-shing's Cheung Kong Development has been appointed to oversee the construction of the 19-storey building, on a 40,000 square foot site in Kennedy Road. The site, originally used for civil servants' quarters, has been transferred to China. A smaller site nearby has been allocated for quarters for the Chinese Foreign Ministry staff. It is hoped the two projects will be ready before June 30, 1997. Tse Sau-ling, of the Visa Office for the Foreign Ministry of China, said a ground-breaking ceremony was expected to take place on October 18. The guest list had yet to be drawn up.