Satellite photography suggests that the Chinese have plans to launch ICBMs from the Wu-chai launch complex to the Indian Ocean. Since late 1970, they have been building six permanent tracking sites near the Wu-chai rangehead, where they developed the CSS-2 IRBM. Recent photography shows that at least two of these sites are located well south of the CSS-2 flight path from Wu-chai to the regular impact area at Min-feng, some 1,400 nm to the west. In addition, work on a large silo has been under way at Wu-chai since the summer of 1968.