Pimentel said that China had previously been cautious about supporting language on global monetary imbalances "because they thought we could be indirectly referring to them."
Many analysts believe that Beijing artificially manipulates its currency but Pimentel said the biggest policy problems now are in the rich world.
"Today's (problem) doesn't have to do with China," he said in a 30-minute interview on the eve of the summit in New Delhi. "It has to do with the dollar and the euro."
Pimentel also gave details of a new initiative to reduce business costs for Brazilian exporters and importers, and explained how his country will seek to address alleged global economic imbalances before the World Trade Organization.
Brazil accuses rich countries of causing a "monetary tsunami" by engaging in expansionist policies such as low interest rates and bond-buying programs.
The policies are designed to stimulate the troubled U.S. and European economies, but have also unleashed a wave of global liquidity that has poured into emerging markets like Brazil, driving up their currencies and making their economies less competitive abroad.
Quotes are from Brazilian Trade and Industry Minister Fernando Pimentel courtesy of Reuters.