China has been accused of unfair practices by firms overseas for dumping products at low prices in their home markets.
In April, China promised to reduce its steel output, following a crisis meeting attended by 30 nations.
The President met Premier Li Keqiang on the sidelines of the United Nations General Assembly in New York.
In a statement from The White House, President Obama also urged China to establish a level playing field, so that all firms can compete fairly in the country.
