China-based Taihua supplies natural ingredients made from Chinese trees and plants. Taihua supplies two main ingredients for generic cancer drugs. It says it can make them more cheaply and efficiently than rivals. In one case the raw material comes from yew trees and it has leased a forest of yews to provide the material. Taihua raised £780,000 at 10p a share when it joined Aim on 14 December 2006.