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CORPORATE PRESENTATION April 2021 TSX.V : LEM Nasdaq First North : LEMSE OTCQB : LEMIF 27 Co Cobalt 58.933 66 Dy Dysprosium 16250 65 Tb Terbium 158.925 60 Nd Neodymium 144.24 59 Pr Praseodymium 140.908 6 Carbon 12.001 3 28 Ni Nickel Lithium 6.941 58.693 LEADING EDGE MATERIALS