** Shares of antimicrobial products manufacturer Zoono Group ZNO.AX rise as much as 43.5% to A$0.066, their highest since May 21
** Co and its partner OSY Group enter an exclusive agreement with South Africa-based Mpact Operations
** Agreement allows Mpact to use ZNO's shelf-life extension products and OSY's application technologies to improve its own packaging solutions
** Says minimum purchases over the five-year term to maintain exclusivity will total NZ$5.1 million ($2.92 million)
** Trading volumes ~7x the 30-day average of 185,620 shares
** Stock up 164% YTD, including the day's move
($1 = 1.7443 New Zealand dollars)
(Reporting by Himanshi Akhand in Bengaluru)
((Himanshi.Akhand@thomsonreuters.com;))