UK/US/ India Stock Researching and Analysis

Hi,

I need Stock research help on the following:

- UK Listed ETF/Stock(to start with UK)
- ETF Tracking the price of a Commodity(Example like Sugar, Silver, Oil etc)
- If ETF is not visible, other UK Listed Commodity Manufacturing Company
- What is the Nature of the listed ETF (Example: Made up of group of other Companies, Tracking Price of the
base commodity, Its Expense Ratio, Risk)

Thanks