With growing movement toward carbon neutrality worldwide, carmakers are making efforts to reduce emissions in their manufacturing process and so are their suppliers.

Tokai Rika Co., a primary auto parts supplier to Toyota Motor Corp., has started supporting its small and medium-sized subsuppliers to boost their energy saving efforts, so as to achieve decarbonization throughout the manufacturing process.

In a room at Tokai Rika headquarters in the town of Oguchi, Aichi Prefecture, with a signboard saying “energy-saving dojo” strung from the ceiling, employees of the firm who are certified energy managers offer lectures to officials from small and medium-sized suppliers on ways to avoid wasting electricity.