China is expected to gradually revalue the yuan and allow its currency to appreciate 20-30 pct over the next two to three years, said Frank Gong, JP Morgan's chief economist for China. Gong sees the yuan rising by about 5 pct in the next few months. He expects China to benefit from a revaluation, saying it should keep interest rates low and inflation manageable. Gong said the move will also keep consumption robust and speed up the country's industrialization. He noted that a revaluation of the yuan should also benefit Hong Kong, as the territory will serve as the gateway for funds from the mainland to flow for investments around the world. JP Morgan expects China's economy to expand 9.4 pct this year and 8.5 in 2006