Published by Zeb BhamBrazil and India have joined the US in calling for currency reform for the yuan, ahead of the meeting of G20 leaders later this week.At a press conference in Mumbai attended by Bloomberg, the Reserve Bank of India's governor Duvvuri Subbarao said that there is growing disparity between export volumes between the two countries that "obviously is a reflection of differences in the exchange-rate management".Meanwhile, Henrique Meirelles, governor of Brazil's central bank, insisted that it is "absolutely critical" that China allows its currency to appreciate.There is a mounting chorus of objections to China's current exchange rate policies, which many believed have left the currency strategically undervalued in order to maximise export trade growth during the crisis.Philip Wee, a Singapore-based senior currency economist at DBS Group, said that the upcoming G20 meeting will be seized upon by President Obama as he attempts to gain support for a revaluation."This meeting will be the first test by the US to use a multilateral forum to press China into action on its currency," he commented.For more information on international payments, visit our Smart FX site