Hi, i think i am the right person you are looking for.
Cause i have been doing foreign business in factories for over 6 years, i know how to deal with factories, forwarders, customers.
Plus, i'm living in Shenzhen. It's great convenient to fulfill your tasks.
By the way, Brazil has high import taxes, and the customs officer is hard to deal with, you should have strong custom clearance ability, or choose a forwarder with strong custom clearance ability, like China post, EMS, ..