(Bloomberg) -- Argentina’s bondholders shouldn’t expect any more improvements or changes to the country’s debt restructuring proposal, Economy Minister Martin Guzman said.

The government doesn’t see space for further modifications on an amended offer released Sunday night, part of Argentina’s bid to restructure $65 billion of debt. The proposal gives bondholders about $13 billion dollars more than its initial proposal announced in April.

“Clearly not,” Guzman said Wednesday, responding to a question about modifying the deal in any way. “Negotiations were performed until the moment in which we launched the offer. Now there’s an offer, and creditors will decide on that offer.”

Argentina defaulted for the ninth time in its history on May 22, with the government repeatedly extending the deadline for a deal as negotiations dragged on between offer and counteroffer. Along the process, the government has said several times that it was making its best effort.

In an interview held at the Economy Ministry, Guzman said he expects to receive opposition from one of Argentina’s largest creditor groups, known as the Ad Hoc group, which includes investor heavyweights like BlackRock Inc and Ashmore Group Plc.

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The government, which set minimum participation rates in its latest offer, said it will assess a partial exchange after seeing the level of creditor participation in the latest offer, Guzman told foreign press reporters.

“As of today, all alternatives are possible within the constraints that we have defined but the final decision is going to be made once we have more clarity on the process, on the acceptance from creditors,” Guzman said when questioned about a partial exchange.

Guzman added that some creditors are already on board and touted support from G-20 finance ministers, who met virtually Wednesday and expressed support for Argentina, Guzman said.

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