Chinese/English Assistant for Product Development

We are in the process of developing a range of products from Chinese manufacturers. The products we are working with are gift-ware items that we are ordering with our own artworks applied. We are in the process of negotiating with a supplier for making bone china mugs. The language barrier is a little limiting and we feel an unfair burden on our suppliers, as we have no Chinese what so ever. The job is to assist with negotiations, via email or perhaps on occasion by phone. The work load will vary from week to week but will not be heavy. There is the possibility of a longer term work. We would prefer the applicant to be a resident of China as you could possibly assist us on visits to suppliers.