"Dumas is an innovative shaft construction company, they have many years of shaft construction experience and with an excellent track record on construction safety and cost controls.“
Volcan is a Peruvian mining company founded in 1943. Today, it is mostly engaged in the exploitation of silver, zinc, copper and lead. All operations are located in the central mountains of the Peruvian Andes.
Dumas was engaged in the construction of the Jacob Timmers Shaft in the District of Huayllay, Province of Cerro de Pasco.
For more information about Volcan, please visit: http://www.volcan.com.pe/english/