Following the Trade Agreement with Alpha Centauri the name was changed to the Terran Trade Authority and its responsibility was extended to cover interstellar commerce. To meet the growing demand for more extensive spacecraft manufacturing facilities, the TTA undertook the construction of the great Mars Shipyards which were completed in 2046, although ships were coming off the slips as early as 2038.
Primarily an administrative body, the TTA is nevertheless also a major manufacturing concern producing a wide range of specialized products from medical and scientific research equipment to the energy-absorbent Defence Shields of which it is the sole supplier.
-From Spacecraft: 2000-2100 AD
terrantradeauthority at gmail dot com