WASHINGTON, May 11 (Reuters) - Chinese wireless device manufacturer Quectel Wireless Solutions 603236.SS sued the Pentagon on Monday over its inclusion in a U.S. list of companies allegedly aiding Beijing's military.

The Pentagon added Quectel in January to a list of companies it says work with China's military. However, Quectel strongly denied the allegation and said it was causing it serious economic harms.

The company says it manufactures purely civilian equipment like cellular modules and antennas used in car infotainment systems and other "smart" connected electronic devices.