A San Gabriel Valley woman who was accused of using counterfeit postage on tens of millions of packages pleaded guilty Friday to defrauding the United States Postal Service out of more than $150 million.

Lijuan “Angela” Chen, 51, pleaded guilty to one count of conspiracy to defraud the U.S. and one count of using counterfeit postage, according to a statement from the U.S. Justice Department.

Chen, a resident of Walnut, has been in federal custody since she was arrested in May 2023. A co-defendant, 51-year-old Chuanhua “Hugh” Hu — who authorities say is considered a fugitive hiding in China — has been charged with one count of conspiracy to defraud the U.S., three counts of passing and possessing counterfeit obligations of the U.S. and a count of forging and counterfeiting postage stamps.