Language of requesting and encouraging is not strong enough to constitute a "mechanism".
"Yazaki purchases parts/materials for its products from various suppliers in and outside of Japan.
Yazaki requests all suppliers in its supply chain to take appropriate steps based on the relevant policies stated below. Additionally, to influence further throughout the wider supply chain, we encourage our suppliers to apply such policies to their suppliers and sub-contractors so that it helps the mitigation of slavery or human trafficking risk in our whole supply chain."
--Richard Mills.....2016-11-03 16:08:23 UTC