WSM Is Joining the Fight Against Plastics, Wants Vendors to Follow Suit 13 May 2019 WSM will require its suppliers to demonstrate a viable plan to reduce plastic usage on their products.Author: Capt. Johnhttps://worldmaritimenews.com/archives/276610/wsm-is-joining-the-fight-against-plastics-wants-vendors-to-follow-suit/