** Shares of Spark Technologies SPN.AX rise as much as
7.8% to A$0.275, their highest since Aug. 7
** Stock posts its biggest intraday pct gain since Nov. 14
** Co completes first phase of prototype testing of Hydrogen
photocatalytic water splitting reactor, says all key objectives
of the testing were achieved
** The reactor is mainly used to spilt water molecules to
produce hydrogen gas
** Adds another round of prototype testing at CSIRO Energy
Centre is likely during H1 2024
** About 53,504 shares change hands, compared with the
30-day average volume of 47,314
** Stock has fallen 48.5% this year as of last close
(Reporting by Sneha Kumar in Bengaluru)
((sneha.kumar@thomsonreuters.com;))