York Regional Police arrested the primary suspect and searched a Markham home on 15 May 2026.[1] Five Markham residents were later charged: Tien Chen, 59; He Jin Jiang, 43; Junjuang Ke, 52; Yun Qing Chen, 50; and Yongzhong Ke, 78.[1] All five are charged with possession of cannabis for the purpose of distribution.[1] Tien Chen faces an additional count of the same charge and one count of possessing a scheduled substance.[1]

On 21 May, officers searched two more Markham homes and a commercial shipping unit in Toronto.[2] The searches turned up more than 1,300 pounds (about 590 kilograms) of illicit cannabis.[3] Officers also seized more than 30 jars of cannabis oil extract.[3] Police put the combined street value of the drugs at more than $3.4 million.[1] At the first home, officers also seized Canadian currency and a substance believed to be crystal methamphetamine.[1]

Police launched Project Eclipse in May after a tip that a suspect was distributing illicit cannabis from a Markham home.[4] Police allege the suspects were part of a network trafficking cannabis throughout the area.[1]