** Shares of Australia's Centrex CXM.AX rise as much as
6.5% to A$0.165, set to gain the most since March 23
** The sustainable agri-business signs offtake agreement
with NZ-based fertiliser cooperative Ballance Agri-Nutrients
** Says agreement for supply of phosphate rock from the
Ardmore Phosphate Project in Queensland
** Adds has allocated upto 20% of production at Ardmore
project towards the agreement
** Stock has risen 19.2% this year, as of last close
(Reporting by Rishav Chatterjee in Bengaluru)
((Rishav.Chatterjee@thomsonreuters.com;))