China's export growth slowed as the global financial crisis cut demand, adding to the risk of a slump in the world's fourth-largest economy. Exports climbed 19.2% in October from a year earlier after gaining 21.5% in September, the customs bureau said on Tuesday. The trade surplus swelled to a record 35.2 billion USD as import growth weakened. ''Demand from Europe and the U.S. will inevitably shrink further, damping China's exports and thus domestic investment,'' said Wang Qian, an economist at JPMorgan Chase & Co. in Hong Kong.