ELGIN AND ARLINGTON HEIGHTS, ILL. — Plymouth Industrial REIT Inc. has acquired two Class B industrial buildings in the Chicago area for $15.7 million. One of the properties is a 236,736-square-foot building located at 1600 Fleetwood Drive in Elgin. Stamar Packaging fully occupies the asset. The other property, Three West College Drive in Arlington Heights, is 100 percent leased to Arrow Up, a provider of containerized bins for the oil fracking industry. The seller was not disclosed.