Ethanol and CO2 are used in the extraction of CBD oil from hemp. As I've been saying, ethanol plants are the perfect place to process hemp. It's finally happening.
GERS, the king of oil extraction technology, has been developing cannabis oil extraction technology for years. While I can't confirm whether or not GERS is involved with Marquis' hemp oil extraction, they do have a business relationship. Marquis was an early adopter of GreenShift's corn oil extraction technology.