South Africa's Anglogold Ashanti does not need to pursue mergers and won't add scale for its own sake, its interim chief executive said on Wednesday, dampening speculation it could take part in further deals in the sector.

Sibanye-Stillwater CEO Neal Froneman this month floated the idea of a merger with peers AngloGold and Gold Fields, arguing consolidation is needed for South Africa's gold miners to compete globally.

Anglogold interim CEO Christine Ramon declined to comment directly when asked about a potential tie-up with Gold Fields during a roundtable at the Mining Indaba Virtual Investment Programme alongside Froneman and Barrick Gold head Mark Bristow.

Consolidation can bring benefits including operational synergies, but can also add complexity and costs, she said.

"I think bigger doesn't necessarily mean better. We wouldn't look to build scale just for the sake of it."

Ramon, who replaced Kelvin Dushinsky at the helm of Anglogold last year on an interim basis, said the miner is focused on developing its own assets and has the support of investors.

"For us it's far more important not to get distracted," she said.

The shares of Anglogold were flat on Wednesday.

The stock initially rose 2.6% while Gold Fields fell 2.6% after Froneman floated the prospect of a deal on March 8. Sibanye shares fell 1.2% on that day.

Froneman has expressed interest in acquiring a mid-tier gold company with more than one-million ounces and operations outside South Africa as it looks to build its gold business.

Sibanye, which started out as a pure gold producer, became the world's largest platinum miner with its 2019 takeover of London-listed rival Lonmin.

Gold generates less than 20% of Sibanye earnings currently, and the miner is keen to diversify beyond platinum to support a sustainable dividend, Froneman said on Wednesday.

"To do that you can't be cyclical," he told the panel. "You can't have a strategy or a policy that puts you at the vagaries of commodity prices."