Advice Consultancy Research

I need an understanding of the buying processes present within the ‘UK’ Tin market.

This is TIN used for packaging (Tin containers boxes) within the medical, food, Candle market., cosmetics, etc markets

I need a very concise, clear and short report (Or chat over the phone and document) That tells me what the buying processes are within the Tin packaging industry (What do buyers do to find tin sheet / packaging sellers)

ie as a seller who do I need to contact, where do I need to go to find buyers (Where do buyers find their products)

I am looking for large buyers and 'Industry; process.