The signing in Alkhobar of a strategic cooperation and alliance agreement between Saudi Arabia's Mohammed Hamad Al-Soaib Law Firm and the Luxembourg-based Lux Global Trust Services and Theisen Advocates recently is set to increase the use of the Duchy as a trust and tax domicile for Saudi investment products; investment vehicles such as special purpose vehicles (SPVs) used in the issuance of sukuk for instance; and the registration of investment funds, especially for UCITs (Undertakings for Collective Investment Trusts) of which Luxembourg is the world leader.