RXNB is an investment company with holdings in drug formulation, manufacturing, and distribution.   The company represents a recent roll-up of several independent companies in the pharmaceutical and nutraceutical market.   RXNB has numerous pending patents in the field of THC research and development.-from growlife press release

This is private company owned by Bill and Sam. While fitx doesn't own this company it will manufacture mmj to sell based on patents owned by RXNB. They won't own the patent or technology but they will be selling the product and the major beneficiary of said patents and technology.