<a href="http://www.sec.gov/Archives/edgar/data/1144320/000114420407016412/v070265_10ksb.htm" rel="nofollow" target="_blank">http://www.sec.gov/Archives/edgar/data/1144320/000114420407016412/v070265_10ksb.htm</a> Read this (page 8)--at the time they basically had one large customer--China Mobile.