Prior to the introduction of the Tieren Ground Type late in the Solar Power Wars that occurred during the construction of the Orbital Elevators, the Human Reform League (HRL) relied on the fossil fuel based MSJ-04 Fantong, which had no space-use variant. For space combat, the small mobile armor MAJ-S08 Xiaoshou was deployed, but as the wars went on and the fighting intensified, HRL realized it needed a better machine. Playing catch up to the other militaries in developing space-use mobile suits, the HRL successfully created its first such mobile suit, the Tieren Space Type, using the Tieren Ground Type as a base and incorporating data from the Xiaoshou.

By AD 2307, the versatile Tieren Space Type has served as the HRL's mainstay mass production space mobile suit for more than a decade, but it remains in active service thanks to multiple minor revisions. While some of its features are obsolete, the technologies utilized are highly reliable, enabling easy repair. Equipped with various space-use equipment, including nine thrusters across its body, this mobile suit has excellent mobility in space (as seen during the Gundam capture operation) despite weighing over 120t.