** Shares of MTM Critical Metals MTM.AX rise 18.5% to A$0.16
** Stock hits its highest level since March 28
** The critical metals explorer secures a second long-term E-scrap supply agreement with U.S. recycler, Plastic Recycling Inc.
** Stock down 48.1% this year, as of last close
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com;))