SuperBox, Inc. announced the signing of a Joint Venture agreement with PK Clean Technologies. SuperBox, through its Environmental division, is partnering with PK Clean, a US cleantech developer of waste plastic to fuel technologies. SuperBox will acquire an 80% interest in an operating plant of PK Clean once it raises the total funds to double the size of an existing PK Clean plant to 20 Tons per day. PK Clean will own 20% and operate the plant under a management contract.