Topic, TSUNEISHI SHIPBUILDING and OceanWings announced the successful completion of OceanWings rigid wingsail installation aboard the Ultramax bulk carrier MARIA TOPIC. Retrofitted at TSUNEISHI SHIPBUILDING in Japan, the vessel now returns to commercial service…<p><p>https://www.marinelink.com/news/rigid-wingsail-retrofit-successfully-542414</p></p>