A corporation is an entity established under the laws of a state. A corporation establishing itself as an independent state is fundamentally incompatible with the retention of corporate status.
The people employed by a corporation are citizens of one or more states. A corporation that purported to seek statehood would run up against the citizenship rights and responsibilities of those employees.
Consider:
https://en.wikipedia.org/wiki/Sovereign_state
https://en.wikipedia.org/wiki/Self-determination
The idea of a corporation becoming a sovereign state under the existing world order is absurd. None of: the elements of statehood, recognition by other states, or a national identity to exercise self-determination can be obtained by a corporation through the mere use of skills.