Since demand for consumer electronics has been increasing, so has electronic transformer for last 20 years. Even during economic slow down, product line continues to attract suppliers. According to China Electronic Components Association, their numbers have reached about 3,000 companies. By 2010, china would be able to create a total output of 5 billion electronic transformers valued at $5.4 billion, from 3.7 billion in 2007. Profit margins for these makers are estimated at about 265 million. Export value by the end of 2010 is also forecast to increase from $1.3 billion in 2007 to $2 billion. China manufacturers are working towards developing new types of electronic transformers and exploring more overseas markets.