China's sex ratio is unbalanced, this is the reality.
But the real situation is, in city area, the sex ratio is balanced, many big cities there are more females than males.
But in the countryside/rural area, the sex ratio is unbalanced.
So now more and more foreign brides come to China to marry Chinese peasants in rural area.
Mostly foreign brides come from the following countries:
In North and Northeast China, some males married Russian, Mongolian and North korean females.
In central and South China, many farmers married brides mostly from Southeast Asia (Vietnam, Burma, Laos and Cambodia)
Now recently, more brides from Ukraine and Thailand married to Chinese males in some parts of China.
So in the future, as China's economy develops, more and more foreign brides will help to solve China's gender gap issue.