Abducted women are taken to provinces far away from their homes and sold to men who have trouble finding local women to marry. A Chinese human rights NGO estimates the number of women sold as brides to be more than 50,000. In one documented case, a wife and mother of two, while traveling for work, was drugged and eventually sold as a bride for $1,500. The gender imbalance in China is a major reason for trafficking of women into forced marriages. After China adopted the one-child policy in 1979, the number of females dropped because of selective abortion or infanticide. In parts of rural China, males outnumber females by 20 to 40 percent.

https://www.pbs.org/wnet/wideangle/uncategorized/human-trafficking-worldwide-china/1451/

'Bride' trafficking – How Chinese gangs lure Pakistani girls into fake marriages(human trafficking and organs sale)

https://www.dw.com/en/bride-trafficking-how-chinese-gangs-lure-pakistani-girls-into-fake-marriages/a-48698883