The advantages

Provision of employment to the people who work in the mines, at the ports and as the drivers of the company vehicles..
Provision of foreign exchange through exports. This helps to pay for imports and servicing the foreign debt.
Development of the transport network in terms of improved road and railway network.
There are clear diversification of the economy instead of relying on rubber exports only.
Provision of cash income to the people. Their standard of living improves.
The iron ore mines are self contained settlements with their own workshops, ware houses, vehicles, schools, hospitals, shops, security station which have generally benefited the people.
There have been improvements made on the port of Buchanan.
It has provided market for the locally produced goods which are sold to the miners.
Promotion of international relations.