The document discusses various Islamic finance structures that can be used as alternatives to conventional debt structures. It describes common equity-based structures like Musharakah, Murabaha, and Mudarabah. It also discusses Sukuk structures, which are Islamic bonds, with the most common being Sukuk al-Mudarabah and Sukuk al-Ijarah. The document notes there are opportunities for businesses to access liquidity in the Middle East market through these Islamic finance structures.