SEK Kong should be used for the People's Liberation Army (PLA) and the Chinese Air Force after 1997, the Hongkong Democratic Foundation suggested yesterday. Most of the remaining British military land should be released for commercial and residential development, it said. The proposal came after the Sino-British Joint Liaison Group's defence experts failed to reach an agreement on the future of military land after two days of talks last week. The group believed it would be conducive to the development of Hongkong if more than 5,000 hectares of military land could be released for civil use. Stonecutters Island, the British navy's new headquarters, could be used by the Chinese navy. If more space was required, then Tam Camp, Casino Lines, Gallipoli Lines and Burma Lines could be considered, it said.