Tanzania, Aug. 8 -- Dar es Salaam. When people think about mining, they often picture vast open pits, giant haul trucks and bars of refined gold leaving the country. Yet industry experts say those visible symbols represent only the final stage of a much longer and more complex process.

Across the country's major mineral belts, government regulators and mine executives are implementing a new blueprint for success that combines stable governance, self-sustaining financial models, and deep local integration to ensure natural resources provide a permanent foundation for national development.

For industry veterans, the secret of a successful mine starts long before the first ounce of gold is poured. The general manager at Buckreef Gold Mine,...