Canadian company close to opening fuel plant with Greyrock technology For more information please click here to contact Tuan Nguyen By Bizjournals.com Feed (2019-07-12 16:19:27) | September 4, 2019 A Canadian company is in the midst of building that country’s first gas-to-liquid fuel plant, using a license from Sacramento fuel technology company Greyrock Energy Inc. Posted in Sacramento Business Journal