You're a bit behind the times. I know, since a lot of chemistry research jobs have for 25 years been contracted out to China. I have visited Chinese labs in Shanghai.
It made sense at first: you could get 10 Chinese chemists working all day in the lab in a highly educated area, Shanghai or Beijing, for the cost of 1 American.
Then Chinese started appreciating the wonder of having a salary, getting an nicer apartment, getting a car.
Then you could get 5 Chinese chemists working all day in the lab for the cost of 1 American.
a few years later...
Then you could get 3 Chinese chemists working all day in the lab for the cost of 1 American.
a few years later...
Then you could get 1.5 Chinese chemists working all day in the lab for the cost of 1 American.
At that point it made no sense to seek out Chinese chemists. So... you go to India and get 10 for 1. Then Indian chemists started appreciating the wonder of having a salary, getting an nicer apartment, getting a car.... See where that goes?