Optimarin has announced its best ever start to a year, with the ballast water treatment specialist signing a series of fleet contracts, frame agreements and system orders to continue the positive trend recorded in Q4 2020. The latest contract is a fleet agreement for 30 vessels, with an as yet unnamed owner, which follows on from a 40-ship exclusive frame agreement signed in January, and the extension of an existing fleet contract. A series of other orders, many from new customers, has pushed sales figures past 100 units for 2021 so far.