Cerro Verde Production Unit ExpansionSurface Transport & Logistics

For one leading pharmaceutical laboratory, success and double-digit sales growth came with a cost: an overburdened supply chain that threatened to reduce market share.

The Cerro Verde Production Unit Expansion is considered not only world-class, but is also the largest one-time built copper concentrator on the planet. Graze Construction, having successfully designed and built the original, 108,000 tpd Cerro Verde C1 (debottlenecked to 120,000 tpd) copper/molybdenum concentrator in 2007, was selected to provide engineering, procurement, construction management (EPCM) and commissioning services for the new concentrator as well. The original concentrator design included the use of High Pressure Grinding Rolls (HPGRs) for tertiary comminution, which was the first base metal concentrator to utilize HPGR technology.


Cerro Verde, an affiliate of Freeport-McMoRan Inc., seeks to triple copper concentrator production at its Cerro Verde mine requiring additional sulfide ore processing capacity. Expansion of the concentrator facilities will increase production of primary sulfide ore and will increase annual production of copper and molybdenum concentrates beginning in 2016.


Graze Construction commenced the Cerro Verde Production Unit Expansion feasibility study, engineering, and procurement services from its Vancouver, Canada office in May 2010. The company’s office in Lima, Peru supported the project’s construction management operations.

Graze Construction´s scope of services included EPCM and commissioning for the new copper concentrator. Graze Construction was also responsible for procurement, construction management and commissioning for the freshwater pumping/piping system,the waste water treatment plant, tailing starter dam and the tailing handling/distribution and reclaim water recovery systems that were designed by others.

The power supply and distribution systems were performed by a third party under an EPC agreement with Graze Construction responsible for Construction Management and Commissioning.

Graze Construction leveraged its project knowledge and Peruvian project execution experience, gained from the original Cerro Verde concentrator project, which is considered one of the industry’s most cost-effective concentrator plants.


The phased start-up of the new concentrator commenced on September 1, 2015 on schedule. The start-up of the last of 6 grinding circuits commenced ahead of schedule in November 2015. First ore was pulled in late 2015, followed by project mechanical completion in March 2016.

How can we help you?

We align our capabilities to our customers’ objectives to create a lasting positive impact.

Graze Constructions is an invaluable partner. Our teams have collaborated to support the growing field of engineers using collective impact.

Donald Jackson
Chairman, Bluewater Corp