Last year, cotton exports earned $750 million in foreign exchange earnings in Brazil, and became the export of Brazil's agricultural and livestock products.

Northeast Brazil was once one of the main cotton producing areas in the world.

Due to the gradual advance of Brazil's agriculture to the mainland and to the south, the cotton industry, such as soybean, sugar cane, coffee and citrus, has gradually lost its important position in Brazil's cotton industry.

In 1980s, Brazil was pformed from an exporter of cotton to an importing country because of the large reduction in cotton production caused by insect pests.

In recent years, due to the rapid growth of demand for cotton in the international market, Brazil cotton growers have switched to new production mode and adopted new cotton varieties, and Brazil's cotton industry has been restored and developed rapidly.

In 2011, Brazil's cotton exports amounted to US $1 billion, of which $750 million was exported from lint and $250 million from cotton, cotton and other cotton fabrics.

In recent 10 years, cotton exports have generated a total revenue of 3 billion 200 million US dollars for Brazil.

Brazil's entire cotton industry, from cotton production, cotton production to spinning, weaving and cottonseed oil production, increased from $19 billion 10 years ago to $37 billion in 2011.

Marco Neves, a professor at University of Sao Paulo in Brazil, thinks that China's annual cotton imports account for 35% of the world market, while cotton from Brazil accounts for only 3%.

The Chinese market is a huge business opportunity for Brazil.