Mitsubishi Motors (Thailand) Co. Ltd. will pour 5 billion baht ($158 million) into an upgrade of its assembly plant in Chon Buri province to produce a passenger-pickup vehicle.

The spending will cover the design and development of the vehicle, as well as more efficient equipment for the plant, President Michiro Imai tells reporters at the launch of the Pajero SUV.

The new passenger-pickup will be based on the Triton pickup and is due to be launched in the Thai market in the fourth quarter. Exports will follow later.

Mitsubishi previously spent TB21 billion ($666 million) to raise capacity at its Thai plant to 200,000 units per year. It now is building an average 180,000 vehicles annually, with pickup trucks accounting for up to 90% of production. It exports 80% of the plant’s output.