Commodities trade has been a mixed picture today. Prices for coke and coking and steam coal all increased, while deformed steel bars, hot rolled steel and iron ore declined, as did most agricultural products.

In fact, many commodities have jumped sharply since the beginning of this year. Coke has increased more than 72 percent, coking coal has risen nearly 40 percent, and iron ore has grown 48 percent. Steel bars have seen a jump of 47 percent.

Those four commodities also have soared quickly in the past six trading days. Coke increased nearly 26 percent, coking coal 14 percent, iron ore 17 percent and steel bars 14 percent.

Agricultural products also saw remarkable performance in April. Cotton contract prices jumped nearly 25 percent, while corn and soy bean meal increased 7.8 percent and 8.4 percent, respectively.

One notable thing about China's commodities market is that the exchanges have increased many commodities' margins to 7 to 8 percent from the previous 4 to 5 percent. Analysts say that was a move to lower trading risks by cutting the leverage rate.