** Matrix Composites & Engineering MCE.AX shares rise as much as 5.4% to A$0.390, their highest level in three years
** Stock records its biggest intraday percentage gain since March 31
** Syntactic foam maker says specialised protective materials maker Advanced Innergy AIH.AX has agreed to acquire company
** Offer values Matrix at A$0.40 a share in cash, representing an 8.1% premium to stock's prvs close
** Matrix’s board unanimously urges shareholders to back deal, barring a superior offer
** MCE up 48%, YTD
(Reporting by Kumar Tanishk in Bengaluru)
((Tanishk.Kumar@thomsonreuters.com; X: @thatstanishk http://www.x.com/thatstanishk;))