HONG KONG — Chinese stocks plummeted 8.1 percent on Tuesday, their biggest single-day drop in nearly 16 months, leading a broad downturn in Asian stock markets.
The plunge in the Shanghai and Shenzhen markets followed an increase in Chinese bank reserve requirements, increased worries about high food and oil prices, and fears about exports to the United States. The Hong Kong stock market also fell 4.1 percent.
