Marsh joins Curis as senior vice president of strategic affairs and corporate development, effective today.
With over 25 years of senior management in the copper mining industry, Marsh will play a key role in design and permitting for Curis' Florence deposit. He has held senior roles with Freeport-McMoRan (NYSE:FCX), Rio Tinto (NYSE:RIO), and Boeing Aerospace (NYSE:BA).
Marsh holds a master of science degree in environmental engineering from Oregon University and a bachelor of science in civil engineering from the University of Florida.
Meanwhile, Greg Phillips - a graduate of Eastern Arizona College - brings over 14 years worth of background in the fields of mineral processing, solvent extraction and electrowinning plant operations.
Phillips, as process superintendent, will now be responsible for planning, implementation and supervision of plant process and reclamation at Florence Copper.
"We are very fortunate to continue to attract such high calibre and experienced professionals to contribute to the development activities in Arizona," Curis' chief executive Michael McPhie said in Monday's statement.
"As our flagship Florence Copper project completes Phase 1 development permitting and nears the start of construction, the depth and experience of our management and operational team is expanding with the growth and success of the company."
The Florence Copper site hosts a shallowly buried porphyry copper deposit with a measured and indicated mineral resource of 429.5 million tonnes, with a 0.331% grade.
It is located in Pinal County, Arizona about 70 miles north-northwest of Tucson and 65 miles southeast of Phoenix.
According to the latest timeline, the company could begin full commercial production by early 2015, after which it expects to produce between 55 and 84 million pounds of copper per year.
The project has an estimated after-tax net present value of $360 million at a 7.5 per cent discount rate and a $2.50 per pound copper price.