By Tiffany Williams –
BOSTON — Seven Chinese nationals have been charged in connection with a wide-ranging conspiracy to cultivate and distribute large quantities of marijuana across Massachusetts and Maine using a network of covert grow houses operating inside residential properties. Federal prosecutors allege the operation included labor trafficking, money laundering, and the smuggling of individuals into the United States to work under coercive conditions.
The indictment, unsealed this week, charges all seven individuals with conspiracy to manufacture, distribute, and possess with intent to distribute marijuana. Several face additional charges including money laundering and smuggling of noncitizens.
The following individuals were indicted:
- Jianxiong Chen, 39, of Braintree, MA — also charged with money laundering conspiracy, 11 counts of money laundering, and one count of bringing aliens into the U.S.;
- Yuxiong Wu, 36, of Weymouth, MA — also charged with money laundering conspiracy and four counts of money laundering;
- Dinghui Li, 38, of Braintree, MA — also charged with money laundering conspiracy and two counts of money laundering;
- Dechao Ma, 35, of Braintree, MA — also charged with money laundering conspiracy and two counts of money laundering;
- Peng Lian Zhu, 35, of Melrose, MA — also charged with money laundering conspiracy;
- Hongbin Wu, 35, of Quincy, MA; and
- Yanrong Zhu, 47, of Greenfield, MA and Brooklyn, NY — currently a fugitive.
Six of the seven defendants have been arrested. Authorities are continuing to search for Yanrong Zhu.
Federal investigators allege that the conspiracy began as early as January 2020 and operated an interconnected network of grow houses in cities including Braintree, Melrose, and Greenfield, Massachusetts, as well as in Maine. The group is accused of maintaining an internal “East Coast Contact List” of marijuana cultivators and distributors linked to Chinese nationals.
According to court documents, Jianxiong Chen allegedly operated several grow houses in Maine and used a Braintree residence as a hub for distributing marijuana and collecting bulk cash proceeds. Law enforcement officials say marijuana and money were transported to the Braintree address in hidden compartments within vehicles. A search in October 2024 led to the seizure of over $270,000 in cash, multiple Chinese passports, and luxury items.
Investigators also allege that Chen coordinated the smuggling of Chinese nationals into the country, requiring them to work in the grow houses until they repaid their smuggling debts. Their passports were allegedly held until the debts were paid off.
The indictment states that the operation brought in millions of dollars in revenue, which was allegedly laundered through real estate purchases, luxury car acquisitions, and other high-end spending. In one case, officers recovered a gold Rolex watch with a $65,000 price tag from one of the residences.
Additional searches of homes in Braintree and Melrose in October 2024 reportedly led to the seizure of more than 109 kilograms of marijuana, nearly $200,000 in cash, and further luxury goods. In a separate incident in June 2023, law enforcement stopped Hongbin Wu and Yanrong Zhu after they left a grow house in Greenfield, recovering $36,900 in cash from their vehicle.
The potential penalties for the charges are significant:
- Conspiracy to manufacture and distribute marijuana: up to 5 years in prison, a $250,000 fine, and at least two years of supervised release.
- Money laundering conspiracy: up to 20 years in prison, a $500,000 fine (or twice the value of the laundered money), and up to three years of supervised release.
- Money laundering (substantive counts): up to 10 years per count.
- Smuggling of noncitizens into the U.S.: a mandatory minimum of 3 years and up to 10 years in prison, along with a $250,000 fine.
Sentences will be determined by a federal judge based on the U.S. Sentencing Guidelines.