The first 100 days are not only what happens after launch. They start before the first serious commitment.
A strong first-100-days plan should make five things visible.
First, the business activity and assumptions. Second, the entry route and location logic. Third, the local confirmations needed from specialists. Fourth, the capital, property, supplier, and partner sequence. Fifth, the operating rhythm that keeps the owner from becoming the whole system.
The checklist is not glamorous. That is why it works.
It turns a vague Vietnam opportunity into weekly controls: who owns which decision, what evidence is needed, what can wait, what blocks the next step, and what should not be promised until confirmed.
If the plan cannot survive a checklist, it is not ready for money.