Yiu Wa Yung

Also Known As: 

Stephen Yung

Related Country: 

  • China
  • Hong Kong

A Chinese national based in Hong Kong; according to the U.S. Department of the Treasury, part of arms proliferation networks led by Emily Liu and Rayan Roshd Afzar supporting Iran's military, including its ballistic missile and unmanned aerial vehicle (UAV) programs.

According to the U.S. Department of Justice, involved in a conspiracy to unlawfully export and smuggle U.S.-origin electronic components from the United States to Iran through China and Hong Kong for the benefit of entities affiliated with the Islamic Revolutionary Guard Corps (IRGC) and Ministry of Defense and Armed Forces Logistics (MODAFL).

Indicted in the United States on January 30, 2024, along with Baoxia Liu (Emily Liu), Yongxin Li (Emma Lee), and Yanlai Zhong (Sydney Chung), on charges of conspiring to violate the International Emergency Economic Powers Act (IEEPA), violating IEEPA, smuggling goods from the United States, and submitting false or misleading export information; remained at large as of February 2024.

From May 2007 until at least July 2020, allegedly used several China-based front companies to funnel U.S.-origin items that could be used in UAVs and ballistic missiles to sanctioned Iranian entities including Shiraz Electronics Industries (SEI) and Rayan Roshd Afzar; together with Liu, Li, and Zhong, allegedly exported thousands of U.S.-origin goods to Iran; in 2019, allegedly submitted a false end user statement indicating that a technology company based in Jiangsu, China, was the ultimate end user of a shipment that was in fact destined for Iran.

Allegedly sought to procure items including digital integrated circuits, a multi-axis filament winder, keypad interfaces, voltage suppressors, digital compasses, field effect transistors, fixed resistors, dowel pins, military standard fasteners, heat shrink boots, circular connectors, flanges, toggle switches, a fixed ratio DC-DC converter, and a non-isolated regulator for the benefit of end users in Iran.

According to the U.S. Department of Justice, served as a representative for the China-based companies Abascience Tech Company Ltd., Abasic Tech Co., Ltd., and Sanestar China Limited when conducting procurement for Iran.

Born in 1960.


Added on October 18, 2023, to the Specially Designated Nationals (SDN) list maintained by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC), freezing the person’s assets under U.S. jurisdiction and prohibiting transactions with U.S. parties, pursuant to Executive Order 13382, which targets proliferators of weapons of mass destruction and their delivery systems; foreign parties facilitating transactions for the person or otherwise assisting the person may be subject to U.S. sanctions; also subject to the Iranian Financial Sanctions Regulations; foreign financial institutions facilitating transactions for the person may be prohibited from opening or maintaining correspondent or payable-through accounts in the United States.

Mentioned Suspect Entities & Suppliers: 

Date Entered: 

April 29, 2024

Date Last Modified: 

April 29, 2024