** Shares of Lithium Universe LU7.AX rise as much as 18.2% to A$0.013; head for their best day since early October, if gains hold
** Lithium explorer signs cooperation memorandum of understanding with Taiwan’s RePV Tech
** Under the MOU, RePV Tech will supply the company with silicon wafer material obtained from its recycling operations
** Says deal for co-operation on using silicon wafers for silver extraction testing
** Stock up ~62% this year, including the day's move
(Reporting by John Biju in Bengaluru)
((John.Biju@thomsonreuters.com;))