Li Junfeng, deputy director of energy research institute under China’s National Development and Reform Commission said only four companies, including one Korea-invested company.
Li said China exported more towers than turbines to the US. But export of wind towers does not contribute to the growth of the Chinese wind-power industry.
He added: "What is the difference between exporting wind towers and exporting steels? The technical contents of wind towers are low. Reducing export will instead facilitate upgrading the industry."
Shi Pengfei, vice president of China Wind Energy Association, said the probe by the US Department of Commerce (DoC) will not have a big impact on the Chinese industry because most wind-tower companies are focused on the Chinese market.
To date, China's wind-turbine and component manufacturing sector has suffered from surplus production capacity. Once export to the US market is closed off, Chinese wind-tower makers will meet fiercer competition at home.
Industry officials say the DoC probe will barely leave any impact on Chinese wind-turbine makers, which are striving to tap the US market.
In terms of major manufacturers, Goldwind said it purchases blades and towers for US projects in the US market. While Sinovel said it has only exported four turbines to the United States.
A senior official of China Chamber of Commerce for Import and Export of Machinery and Electronic Products (CCCME) said said Chinese companies export more wind towers to the US market because of market competiveness.
The competitiveness comes from advanced management, production technologies and scaled production, rather than low-price dumping or government subsidies.