** Nifty metal index .NIFTYMET climbs 2.3% to fresh high; top gainer among 16 major sub-indexes
** Global metal prices rises, with Shanghai copper hitting 16-month high on supply concerns at major mines MET/L
** Heavyweights Tata Steel TISC.NS and JSW Steel JSTL.NS top gainers on index, up 2.2% and 2.1%, respectively
** Hindalco HALC.NS, Vedanta VDAN.NS rise 1% each
** Fourteen of 15-member index trading higher
** YTD, NIFTYMET rises ~20% vs Nifty 50's .NSEI ~6% rise
(Reporting by Manvi Pant in Bengaluru)
((Manvi.Pant@thomsonreuters.com; +918447554364;))