Brazil has said that developing nations would be happy to provide more money to ease the eurozone's debt crisis, in return for more power within the International Monetary Fund (IMF).
The comments were made by Brazilian Finance Minister Guido Mantega as he met with his opposite numbers at a G20 meeting in Mexico.
He also called on eurozone countries to contribute more of their own funds.
This position was echoed by UK Chancellor George Osborne.
Mr Mantega said: "Emerging countries will only help under two conditions; first that they strengthen their firewall and second for the IMF [voting rights] reform be implemented.
"I see most countries sharing a similar opinion that the Europeans have to strengthen their firewall."
Mr Mantega, and other G20 finance ministers, want eurozone nations to put more funds into the European Stability Mechanism, the fund set up to bail out nations struggling with their sovereign debt.
'Colour of money'
German Finance Minister Wolfgang Schaeuble said eurozone nations would look next month at increasing the size of the ESM.
Mr Osborne, speaking to Sky News, said the UK was waiting for this to happen.
"We are prepared to consider [increasing] IMF resources but only once we see colour of eurozone money and we have not seen this," he said.
"While at this G20 conference there are a lot of things to discuss, I don't think you're going to see any extra resources committed here because eurozone countries have not committed additional resources themselves, and I think that quid pro quo will be clearly established here in Mexico City."