
Blue Origin held a groundbreaking ceremony in Huntsville, Alabama, Jan. 25 to formally mark the start of construction of a factory that will be used for building BE-4 engines. The company announced plans to build the factory there in June 2017, contingent on the selection of the engine by United Launch Alliance for its Vulcan rocket. ULA picked the BE-4 in September 2018.
Source: Blue Origin Breaks Ground for BE-4 Rocket Engine Factory in Alabama