The Duong Family owns Cal Waste Solutions, Oakland's recycling company, which also provides junk pick-up in San Jose, and an integrated waste management facility in their native Vietnam.

News of the indictment was first reported by the San Francisco Chronicle, which broke the story Thursday. The same day, officials from the FBI, the Internal Revenue Service and U.S. Attorney’s Office said they planned to announce the results of a “significant law enforcement action” at a news conference.

Thao has maintained her innocence and denied she is at the center of a public corruption scandal. She has largely laid low since being recalled in November.