Workers have also demanded a second pay hike this year at No. 2 producer Impala Platinum.

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The trader noted talks are being held between workers at Impala Platinum and Anglo Platinum.

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In February, a clash between the rivals closed the largest mine of Impala Platinum Holdings Ltd.

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In January, at least three people were killed during a strike at the world's second-largest platinum mine, Impala Platinum.

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Just recently Impala Platinum came to terms with striking workers after several weeks of no output at its Rustenburg mine.

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Earlier this year, at least three people were killed during a six-week strike at the world's second-largest platinum mine, Impala Platinum.

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The mine is located in the Western Bushveld area of South Africa, about 20 kilometers from the giant Rustenburg mine owned by Impala Platinum, and sits in the heart of South African platinum production, said Kris Begic, vice president of corporate development for the Vancouver-based Platinum Group Metals.

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The Impala shutdown also led to the loss of 120, 000 ounces of platinum production.

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