WASHINGTON, (DNA) – A US judge on Friday ordered Chinese wind turbine maker Sinovel Wind Group Co Ltd to pay a $1.5 million fine after the company was convicted of charges it stole trade secrets from Massachusetts-based AMSC.

US  District Judge James Peterson in Madison, Wisconsin, also sentenced Sinovel to one year of probation, during which it must pay the unpaid balance of a $57.5 million settlement it struck with AMSC that was disclosed on Tuesday. The U. S. Justice Department said Sinovel has already paid AMSC, formerly known as American Superconductor Corp, $32.5 million and will have to pay $850,000 to additional victims during the probation period.

The sentence came after a federal jury in January found Beijing-based Sinovel guilty on conspiracy, trade-secret theft and wire fraud charges. A lawyer for Sinovel did not respond to a request for comment. The Justice Department announced charges against Sinovel in 2013 amid heightened concern about Chinese theft of U. S. trade secrets and a legal battle in the Chinese courts pitting Ayer, Massachusetts-based AMSC against Sinovel.

The case centered on technology that AMSC developed to regulate the flow of electricity from wind turbines to electrical grids that Sinovel purchased for its products. Prosecutors said that Sinovel had contracted with AMSC for more than $800 million in products and services to be used in wind turbines it manufactured.