Shares of Gold Fields Ltd., the world's fourth largest gold producer, rose in after-hours trading Wednesday after it said it expects to produce 1 million ounces of the precious metal in South America by 2015.

The forecast was made by Juan Luis Kruger, the South African company's regional chief, at the Perumin mining convention on Wednesday.

Shares of Gold Fields, which operates in South Africa, Ghana, Australia and Peru, rose 12 cents to $16.94 in after-hours trading.

In the last 52 weeks the stock has ranged from $16.81 to $17.10.