Keyes Foreign Trade LLC was founded in late 2019 by seasoned June,Jason and James. Keyes Miner is a trusted Chinese crypto miner supplier,located in Chengdu, China. with the development of the company's business, we have setup a branch in Chicago, USA.Keyes Foreign Trade LLC was founded in late 2019 by seasoned June,Jason and James. Keyes Miner is a trusted Chinese crypto miner supplier,located in Chengdu, China. with the development of the company's business, we have setup a branch in Chicago, USA.