Hong Kong law has traditionally taken a strict approach when dealing with third parties who aid litigation in return for a share of the spoils. However, a recent case together with other developments in the legal arena, indicate this may be an area of change in the future.
Third party involvement in litigation has long been hindered by the law of maintenance and champerty. Unlawful maintenance is the improper stirring up of litigation and strife by giving aid to one party to bring or defend a claim without just cause or excuse. Champerty is a form of maintenance and occurs where the maintainer acts for a share of the proceeds of the action. Both maintenance and champerty are proscribed by public policy to avoid "trafficking" in litigation and "officious intermeddling" in the disputes of others. Public policy by its nature is not static and as such, the demands of public policy are subject to change over time.
In the case of Siegfried Adalbert Unruh v Hans-Joerg Seeberger and Another  HKEC 268, the Court of Final Appeal considered the principles of maintenance and champerty, and the related public policy considerations, and has provided some further guidance in this area
Of related interest is the recent English case of Mansell v Robinson  EWHC 101, which demonstrates the English courts' modern, more flexible approach to the rules against champerty