** Shares of Environmental Group EGL.AX rise 6.8% to A$0.235
** Stock set for its strongest session since March 17, if current trends hold
** The emission control systems provider says it received approval from the Environmental Protection Agency (EPA) to treat harmful chemicals (Perand Polyfluoroalkyl Substances) at its Laverton facility, in collaboration with Reclaim Waste
** Stock down 25.4% YTD, including current session's moves
(Reporting by Manasi Dasa in Bengaluru)
((Manasi.DasaSundeep@thomsonreuters.com;))