Rubbish, they're either lying or don't know what they're talking about. Degumming is part of the original process of refining castor oil after it's been pressed out of the castor bean. Virtually all castor originates in India and is then sold off to any company that wants it. Castrol in England were the first company to sell castor commercially as a lubricating oil (the name comes from CASToR OiL) and that was about 100 years ago and it was degummed of course.