Japan’s Isuzu Motors will build a new plant to reinforce the production capacity of Isuzu Motors Thailand Ltd to meet increasing demand for D-Max pickup trucks and their derivatives.

The automaker badly needs to expand its capacity, as back orders of the D-Max mid-sized model remain so high that Isuzu cannot guarantee delivery for all of them this year.

Executives are also optimistic that the new D-Max model to go on sale Oct 14 will receive a positive response from Thai drivers, which could potentially worsen supply problems.