** Shares of GR Engineering Services Ltd GNG.AX jump as
much as 3% to A$1.890, posting their biggest intraday pct gain
since Feb 2
** Engineering contractor says it entered into two contracts
with OZ Minerals Musgrave Operations, a unit of OZ Minerals
OZL.AX
** Says contracts for design and construction works of West
Musgrave Mineral Processing Plant in Western Australia
** Adds estimated revenue from delivery of contracts will be
A$312 mln ($211.75 mln) over two-year period
** Stock had fallen 10% YTD, as of last close
($1 = 1.4734 Australian dollars)
(Reporting by Echha Jain in Bengaluru)
((Echha.jain@thomsonreuters.com))