Bay Area Man Sentenced to Nearly 4 Years in Prison for Stealing Trade Secret Technology Designed for Missile Launch Detection

LOS ANGELES – A San Francisco Bay Area man and former engineer at a Southern California company was sentenced today to 46 months in federal prison for stealing trade secret technologies developed for use by the United States government to detect nuclear missile launches, track ballistic and hypersonic missiles, and to allow U.S. fighter planes to detect and evade heat-seeking missiles.

Chenguang Gong, 59, of San Jose, was sentenced by United States District Judge John F. Walter, who also ordered him to pay $77,408 in restitution and fined him $100,000.

Gong pleaded guilty on July 21 to one count of theft of trade secrets.

A dual citizen of the United States and China, Gong transferred more than 3,600 files from a Los Angeles-area research and development company where he worked – identified in court documents as the victim company – to personal storage devices during his brief tenure with the company in 2023.

The files Gong transferred include blueprints for sophisticated infrared sensors designed for use in space-based systems to detect nuclear missile launches and track ballistic and hypersonic missiles, as well as blueprints for sensors designed to enable U.S. military aircraft to detect incoming heat-seeking missiles and take countermeasures, including by jamming the missiles’ infrared tracking ability. Some of these files were later found on storage devices seized from Gong’s temporary residence in Thousand Oaks.

In January 2023, the victim company hired Gong as an application-specific integrated circuit design manager responsible for the design, development and verification of its infrared sensors. Beginning on approximately March 30, 2023, and continuing until his termination on April 26, 2023, Gong transferred thousands of files from his work laptop to three personal storage devices, including more than 1,800 files after he had accepted a job at one of the victim company’s main competitors.

Many of the files Gong transferred contained proprietary and trade secret information related to the development and design of a readout integrated circuit that allows space-based systems to detect missile launches and track ballistic and hypersonic missiles and a readout integrated circuit that allows aircraft to track incoming threats in low visibility environments.

Gong also transferred files containing trade secrets relating to the development of “next generation” sensors capable of detecting low observable targets while demonstrating increased survivability in space, as well as the blueprints for the mechanical assemblies used to house and cryogenically cool the victim company’s sensors. This information was among the victim company’s most important trade secrets that are worth hundreds of millions of dollars. Many of the files had been marked “[VICTIM COMPANY] PROPRIETARY,” “FOR OFFICIAL USE ONLY,” “PROPRIETARY INFORMATION,” and “EXPORT CONTROLLED.”

Law enforcement also discovered that, between approximately 2014 and 2022, while employed at several major technology companies in the United States, Gong submitted numerous applications to ‘Talent Programs’ administered by the People’s Republic of China (PRC) government. The PRC government has established these talent programs to identify individuals who have expert skills, abilities, and knowledge of advanced sciences and technologies in order to access and utilize those skills and knowledge in transforming the PRC’s economy, including its military capabilities.

In 2014, while employed at a U.S. information technology company headquartered in Dallas, Gong sent a business proposal to a contact at a high-tech research institute in China focused on both military and civilian products. In his proposal, translated from Chinese, Gong described a plan to produce high-performance analog-to-digital converters like those produced by his employer.

In another Talent Program application from September 2020, Gong proposed to develop “low light/night vision” image sensors for use in military night vision goggles and civilian applications. Gong’s proposal included a video presentation that contained the model number of a sensor developed by an international defense, aerospace, and security company where Gong worked from 2015 to 2019.

Gong also travelled to China to seek Talent Program funding in order to develop sophisticated analog-to-digital converters. In his Talent Program applications, Gong underscored that the high-performance analog-to-digital converters he proposed to develop in China had military applications, explaining that they “directly determine the accuracy and range of radar systems” and that “[m]issile navigation systems also often use radar front-end systems.” In a 2019 email, translated from Chinese, Gong remarked that he “took a risk” by traveling to China to participate in the Talent Programs “because [he] worked for…an American military industry company” and thought he could “do something” to contribute to China’s “high-end military integrated circuits.”

“[Gong’s] conduct is particularly egregious because his deliberate and systematic theft of [the victim company’s] trade secrets is not an isolated incident; it represents the culmination of a long pattern of stealing proprietary technology from U.S. companies to benefit the [People Republic of China’s] military,” prosecutors argued in a sentencing memorandum. 

The FBI’s Los Angeles Field Office through the Counterintelligence Task Force in partnership with the State Department’s Diplomatic Security Service and Homeland Security Investigations investigated this matter. The FBI’s San Francisco Field Office and the U.S. Attorney’s Office for the Northern District of California also provided substantial assistance.

Assistant United States Attorneys David C. Lachman of the Terrorism and Export Crimes Section and Nisha Chandran of the Major Frauds Section prosecuted this case, with valuable assistance from Department of Justice Trial Attorney Brendan P. Geary of the National Security Division’s Counterintelligence and Export Control Section.