A California woman has been convicted in South Florida of conspiring to export fighter jet engines and an unmanned aerial vehicle to China.

The U.S. attorney’s office in Miami reported in a news release Thursday that jurors found 45-year-old Wenxia Man guilty of conspiring to export and cause the export of defense articles without the required license. She faces up to 20 years in prison at an Aug. 19 hearing.

From March 2011 and June 2013, authorities say Man conspired with Xinsheng Zhang, who was in China, to illegally acquire and export the items. When talking to an undercover agent, Man referred to Zhang as a “technology spy” who worked on behalf of the Chinese military to copy items obtained from other countries.