China has increased import taxes on $3 billion of American products in reaction to recent United States trade policies. The Chinese government placed the tariffs on more than 100 products including pork, fruit and other goods. The measures are to take effect immediately. China’s finance ministry said the move was in reaction to U.S. tariffs on steel and aluminum imports announced in March. China’s most recent move adds to complex trade tensions involving the U.S., Europe and Japan. They say that China’s government unfairly supports some companies. This support, they say, is like a subsidy that makes China’s exports less costly and unfairly competitive. The group also says that state support for Chinese companies violates China’s requirements under the rules of the World Trade Organization.