DALLAS–(BUSINESS WIRE)–Jacobs Engineering Group Inc. (NYSE:JEC) has been selected by Minsur S.A., one of the world’s largest tin producers, to perform the pre-feasibility and conceptual studies for the company’s proposed tin mine development project in Peru. Both the conceptual and pre-feasibility studies are being undertaken to extend the life of Minsur’s San Rafael tin processing facilities located near Puno, Peru. The objective of the pre-feasibility study is to define the highest value op