Down Coat import companies and down coat import trade opportunities

I am an entrepreneur looking to manufacture coats with a great fit and of superior quality. I am looking to start out and develop a long term relationship with a manufacturing team that will work with me as I scale my company's growth. I would like to know information regarding coat manufactering. Do you make down coats? Do you work with fur trimmings at all? What is the miminum requirement for designing and manufacturing for a private label? What is the smallest and largest quantities you can accomodate? Which exhibitions do you come to?