Altogether 75 suspects have been caught, police in southwest China's Yunnan Province said.
Police launched its investigation into the case after it recovered a woman in September 2015, who was unable to speak Chinese, and was accompanying a man who was acting suspicious.
It was later discovered that the woman was Vietnamese and she had been sold as a bride for 80,000 yuan (USD 11,620) to a man in Yao Autonomous County of Hekou.
Joint investigation by the police across seven provinces showed that a gang had been active in trafficking Vietnamese women to China.
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