Curis Resources Ltd. will begin trading on the Toronto Stock Exchange as a mining issuer at the open on Wednesday, May 4, 2011, according to the TSX. The TSX reports that Curis, which currently trades on the TSX Venture Exchange, will delist from the TSX-V prior to listing on the TSX. Its trading symbol will remain CUV. The company is concentrating its efforts on its Florence copper project in Arizona.