May 6 (Reuters) - Ardiden Ltd ADV.AX :
* ARDIDEN AGREES OPTION TO SELL 80% OF LITHIUM PORTFOLIO
* TOTAL CONSIDERATION FOR 80% STAKE IS UP TO A$8.7 MILLION
* TO GRANT OPTION TO GREAT NORTHERN LITHIUM TO BUY 80% OF CO'S LITHIUM PORTFOLIO
May 6 (Reuters) - Ardiden Ltd ADV.AX :
* ARDIDEN AGREES OPTION TO SELL 80% OF LITHIUM PORTFOLIO
* TOTAL CONSIDERATION FOR 80% STAKE IS UP TO A$8.7 MILLION
* TO GRANT OPTION TO GREAT NORTHERN LITHIUM TO BUY 80% OF CO'S LITHIUM PORTFOLIO