Can an Employee Ownership Trust permanently protect a company's mission?

A US Employee Ownership Trust (EOT) is one of the strongest tools for protecting a company's mission long term, though "permanently" overstates it. Because shares sit in a trust rather than with individuals who can be bought out, the trust agreement can lock in the mission, restrict any future sale, and appoint roles whose legal job is to enforce that purpose. How durable that lock really is depends on the state chosen, careful drafting, and people honoring their roles. This is general education, not legal advice.