Sirius Technologies and Ursa Major reached a significant milestone today by entering into an agreement for the procurement of ten Ursa Major Hadley small launch engines and collaboration on the development of a medium-launch engine scaled from Ursa Major’s Arroway model.

This follows the approval of a technical assistance agreement by the US Department of State, permitting the export of certain technical data related to the Hadley engine – purchased by ISC and delivered to Sirius Technologies in March 2024 – a landmark approval between American and Japanese space technology companies that is among the very first of its kind in over a generation.