I still don’t think Helios owns the Happy Valley base. In one of the bonus videos it says Helios was chosen by the M7 to be the sole contractor to expand and maintain Happy Valley.
When Helios first got this contract in 1997, they were in financial trouble after an antitrust ruling broke up their monopoly on exclusive government contracts to mine helium-3 on the moon. The M7 contract to expand Happy Valley on Mars was described as a “shot in the arm” for Helios because the M7 was pouring billions of dollars into the project. How could Helios own the base if it’s being paid for by the M7 countries?
Helios owns all the technology like the ships, the plasma engine, and the drilling stuff, but Helios is being paid by M7 to use their technology to to do all these things related to the expansion and maintenance of the base. NASA and the M7 countries use Helios to transport and install their base habs at Happy Valley as part of their contract. If Helios “owned” the base outright then they wouldn’t need to ask the North Koreans permission to go into their wing of the base.