London Metal Exchange in Islamic scale.

I want to explore the role and rules of London Metal Exchange in Islamic banks, especially in Golfe countries including Saudi Arabia e.g how do these islamic banks do their contracts via London Metal Exchange? Through which islamic forms i.e Murabaha, mudgarabah or else? What kind of qrituiqes, remarks and suggestions can be offered for such important topic. I also need to include some thematic analysis either from survey or interviewes.
The paper should be around 6000 to 7000 words including everything.