Cherng Talay Police were called to the scene, in Soi Khok Tonode 1, at about 11:10am.
Officers soon arrived, along with three teams of rescue workers: one from the Phuket Kusoldharm Foundation, one from Cherng Talay Municipality and another from Cherng Talay Tambon Administrative Organisation (OrBorTor).
At the site, officers found a white-and-blue concrete mixer truck, registered in Phuket, overturned in a four-metre-deep construction pit.
The truck, owned by PCL Transport Co Ltd, had fallen after the ground at the edge of the pit gave way.
The driver, identified as King Khannuch, 56, from Phetchabun Province, was trapped beneath the vehicle.
Despite efforts by the rescue teams, the driver was unresponsive and believed to have died at the scene.
Rescue workers used hydraulic equipment to free his body, which was finally recovered at around 1:15pm.
According to the driver’s wife, Mr Khanuch had arrived at the construction site at about 11am to deliver five cubic metres of cement.
As he drove out of the pit, the ground beside the pit collapsed, causing the truck to overturn and trapping him underneath.
Mr Khanuch’s body was transported to Thalang Hospital, where an examination will be conducted to determine the exact cause of death.