I was trying to find a listed provider of an oral drug test, and the only one I could find was Orasure (NASDAQ OSUR)http://www.orasure.com/products-substance/products-substance-abuse-intercept.asphttp://www.nasdaq.com/symbol/osurThey have other oral fluid products tho and seem to be US based. Hard to get info about the Chinese market. Hopefully Beichitech and Howard Digby can help SBN in this space.