U.S. shipbuilder Vigor has launched The Harvest, the first complex liquefied ammonia transport barge built in the U.S. for Jones Act trade since 1982. The vessel was constructed to support the operations of The Mosaic Company, an integrated producer and marketer of concentrated phosphate and potash. The Harvest will be operated by a subsidiary of Savage Companies as part of an articulated tug and barge (ATB) unit. “This is a significant project for both the maritime industry and our community,” said Vigor CEO, Frank Foti.