Photo: Manxuc / Wikimedia Commons / CC BY-SA 4.0
Fluor has received full notice to proceed on the fourth grinding line expansion at the Sierra Gorda copper-molybdenum mine in Chile, clearing the way for a project designed to lift the concentrator’s ore-processing capacity from about 130,000 to 165,000 tonnes a day.
The Irving, Texas-based engineering company announced the go-ahead Wednesday under its engineering, procurement and construction management contract with the mine’s owner, Sierra Gorda Sociedad Contractual Minera. Fluor will book the contract’s value, which was not disclosed, in its third-quarter results. Construction is expected to start in 2027.
The brownfield project adds a fourth process line to the open-pit mine about 60 kilometers south of Calama in Chile’s Antofagasta region, including a new primary crusher, a high-pressure grinding roll crusher, fine ore grinding and flotation facilities.
“Having supported the original development, we are pleased to bring our knowledge of the operation and global project delivery expertise to this next phase of growth,” said Harish Jammula, president of Fluor’s mining and metals business.
Fluor, ranked 257 on the Fortune 500, employs nearly 23,000 people and posted revenue of $15.5 billion in 2025.
JBizNews Desk | Irving, Texas
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