The trading halt will be in place until the beginning of regular trade on Tuesday, March 3, 2020, or when an announcement is released to the market, whichever occurs earliest.
Shares last traded at 9 cents after hitting a new 12-month high of 10.5 cents on Monday, February 24.
Positive phase-II test results
The company received positive results from phase II metallurgical test work at the Manono Lithium and Tin Project in the Democratic Republic of Congo earlier this week.
The bulk test produced around 160 kilograms of concentrate of 6.1% Li2O with a 60.1% lithia recovery.
As well as delivering impressive results in terms of lithia recovery, the results also support AVZ's selected definitive feasibility study (DFS) flowsheet.
The completed phase II optimisation work demonstrated AVZ's laboratory test work is scalable to a full-size operation.