Renascor Resources (RNU) released the results of a recent successful test of the company's graphite purification process.

RNU uses reagents instead of harmful chemicals such as hydrofluoric acid to purify its natural flake graphite for lithium-ion battery anodes.

Dorfner ANZAPLAN, a German independent battery mineral consulting group, conducted a lock-up cycle test and verified the company's process.

To RNU's delight, the lock-in cycle plan exceeded the anode purity specifications for lithium-ion batteries, resulting in a carbon content of 99.99%—higher than the industry standard.

Compared with previous laboratory-scale tests performed by RNU, the results also reduced reagent consumption.

RNU explained that the drop in reagent consumption is equal to the increase in operating efficiency of its planned purified spherical graphite (PSG) manufacturing facility.

"These results confirm that we are not only able to produce battery-grade graphite at a globally competitive cost, but that we can achieve these results while providing positive ESG results," said David Christensen, managing director of Renascor.

"Completing the lock-in cycle test is an important step in advancing our Siviour battery anode material project and reducing its risks. These results further highlight Renascor's potential to become a global leader in the production of 100% Australian-sourced PSG for the lithium-ion battery market."

The company will use all test results to help it inform the engineering work of the planned PSG facility in South Australia.

At 2:16 pm Australian Eastern Time, Renascor Resources (RNU) rose 6.52% to a price of 12.3 cents per share.