Constellium announced it will build a second body in white (BiW) finishing line in North America to further support the growing demand for aluminium from the US automotive industry.

The cost is expected to reach US$160m and is part of the previously announced $750m strategic investment plan to increase BIW production capacity by 2022.

The location of the 100,000 metric tons BiW finishing line, which is due to start production in early 2018, has not yet been decided.

"In light of current volume commitments from customers, we have decided to add further capacity and launch the construction of a second BiW finishing line. This move reflects the success of our continued discussions with car manufacturers," said Constellium CEO Pierre Vareille.

"Constellium expects to benefit from strong market growth as the integration of aluminium body sheet continues to quickly expand across the US automotive industry. We have an ambitious strategy in this market and are fully on track with our expansion roadmap," he said.