GUIYANG/TOKYO/HONG KONG/PALO ALTO, U.S. -- The mountainous region of Guizhou has long been the poorest of China's 31 provinces, known mostly for producing a few herbs used in traditional Chinese medicine, and maotai, a popular distilled Chinese liquor. Its gross domestic product per capita was $6,233 in 2018, less than one third of Beijing's.

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