Akron’s Biodynamics Inc. has sold a majority interest to GreenGro Technologies Inc., an emerging player in the commercial marijuana market. Anaheim, California-based GreenGro, a designer and developer of indoor vertical farms, now owns an 80 percent majority interest in Biodynamics, a provider of controlled environmental agriculture, renewable energy and consumer hydroponics. "GreenGro Technologies continues its ascent in the legal cannabis market with the closing of its acquisition of a majority equity position in Biodynamics, Inc.," said James Haas, chairman and CEO of GreenGro Technologies, in a statement.