Hello, I'm Ijoma Undukwe. Welcome to Business Daily from the BBC World Service. Coming up...

And we will keep the U.S. dollar as the world's reserve currency, and it is currently under major siege. Many countries are leaving the dollar.

You're not going to leave the dollar with me. I'll say, you leave the dollar. You're not doing business with the United States,

because we're going to put 100% tariff on your goods. That's U.S. President Donald Trump last year

on the campaign trail. He's talking about what he perceives as the erosion of the dollar's

global status. The greenback has been the world's main reserve currencies since the end of the Second World

War. But is this changing?

One of the major things that upholds the reserve currency status of the dollar is the sense

that US institutions, and in particular the rule of law, are absolutely rock solid. If that starts

to come unstuck, then the reserve currency status of the dollar is dangerously in flux.

Meanwhile, there are grown calls from countries to use their local money.

Why do they want to shed the most widely used currency for international trade?

If you're purchasing in Naira, you don't need to worry about urging.

You're not worried about foreign exchange losses.

Is the reign of the US dollar nearing its end?

That's all on Business Daily on the BBC.

The humming of machines at the Q-ex factory where electrical cables are made.

It hires nearly 300 employees across three sites in Inou, a small industrial town in the southeast of Nigeria.

Any flunguation in the value of Naira has benchmarked to the dollars always affects our pricing of goods because we...

This is Ijoma, is Sassor, the director of QTICs. The business she runs faces challenges

bringing in raw materials like copper and machinery for the factory from suppliers in China.

That's because imports are paid for in US dollars. In Nigeria,

...