Japanese carmakers Toyota Motor Corp. and Mazda Motor Corp. are reportedly in the final stages of talks to cooperate.

Under the planned partnership, Toyota will supply fuel cell and plug-in-hybrid technology in exchange for Mazda’s proprietary Skyactiv technology, the Nikkei business daily reported.

Toyota began commercial sales of fuel cell vehicles last year, becoming the world’s first automaker to offer the advanced eco-friendly car to general consumers. Mazda is meanwhile attracting strong sales of diesel and gasoline vehicles based on the fuel-efficient Skyactiv technology.

The two companies have previously worked together in several areas, with positive results.

Toyota provided hybrid-vehicle technology to Mazda in 2010, while Mazda agreed in 2012 to supply subcompact cars from a Mexican plant to Toyota.

The two carmakers are also considering cooperating in component procurement.

The latest alliance is part of an effort to jointly address stricter global environmental regulations, the Nikkei said.