Hello won't take much of your time. This guide was made by our veteran and goes further than regional bonuses, material selection and upgrading automated engine and such.
Full video guide here →
https://youtu.be/GBIIQ0kP15E?si=Ge70EDn6YrDygpdT
Covers:
Profiting off workers without your wages eating the bonus
Day trading raw materials
When to shift production
Exploiting the market