The blaring Vuvuzelas on the pitches of the World Cup in South Africa have laid deep impression on soccer fans. The commercial benefits brought about by the China-made plastic trumpets are non-negligible. But the profit margin does not lay in the hands of Chinese people, though it was designed by Mr. Wu Yijun, a businessman from Ninghai of Ningbo. He said he only earned 100,000 yuan from the plastic trumpet. 
Vuvuzela is a kind of plastic trumpet modeled on the instrument used to drive away baboons by the aboriginals. Today it becomes a token of South African World Cup. Now in the world one vuvuzela is sold every two seconds. The designer of the vuvuzula is Wu Yijun from Ninghai.
Wu Yijun, director of Xidian Jiying Plastic Products Factory: I was a soccer fan and often watched soccer games. Then I had an idea that I needed a trumpet. I made it in 2005. But I was unable to sell it to the World Cup in Germany in 2006. This time I have received large orders.
Wu Yijun has received many large orders of vuvuzela from sponsors of the South African World Cup. Till April, his factory has produced one million vuvuzelas. But as his factory is bit small, similar to a household workshop, he lacks enough production capacity. Besides, this trumpet is easy to imitate, other factories are putting on all the speed to produce vuvuzelas.
Wu Yijun said his profit margin is very low, about 5%, for the fact that many factories are copying it now.
As there are many more manufacturers, traders are demanding lower prices. At last, the FOB price is no more than two yuan, with a profit of 0.1 yuan. Wu Yijun said he would apply for registration and exterior patents of the series of products, which he would expect to raise the prices of the products.