Well I guess the big thing here is the contact with a factory. Have you guys ever tried looking into getting in contact with these factories? It's damn near impossible without knowing someone in the business. I've tried getting a hold of factories but they don't have any public emails, sites or even phone numbers. Plus just the name Agile which is well known at this point.
All the information needed for the big OEMs is available to NAMM member merchants.
The factories don't have on-site, higher management "corporate" employees. You want to contact the head office.
Try these:
Cortek: 82 2 3661 1981~3
WMI: 82-32-573-6822
Samick: 82-07-7931-0667