Due diligence by independent geologists describe the project as highly prospective for large-scale, high-quality graphite deposits.
The deal further strengthens the company's growing graphite and lithium portfolio.
BlackEarth is fully-funded to complete ASX listing requirements in the first half of 2017.
The tenements cover 175 square kilometres, encompassing two project areas named Maniry and Ianapera.
These projects are at an advanced evaluation stage.