Bitumen in Nigeria Explained: Deposits, Roads and the Import Gap

Bitumen — the binder in asphalt roads — is one of Nigeria’s great paradoxes: the country holds some of the world’s largest natural bitumen deposits, yet still imports much of what it uses. That import gap ties road-building costs to the dollar and the exchange rate.

The picture

• Large deposits — concentrated in the southwest, largely undeveloped.
• Heavy imports — much bitumen is still brought in, priced in dollars.
• Road demand — a growing need for paved roads keeps demand high.

Why it matters for costs

Because bitumen is imported and dollar-priced, a weaker naira raises the cost of every kilometre of road — the same import-cost logic behind building-material prices and cement materials. Developing the local deposits would change that equation, but until then construction budgets carry real FX exposure.