Can Angola defy the downturn in oil demand and continue to profit from its abundance of fossil fuels? One analyst thinks it can – with a little help from a more diverse range of overseas investors.

PartnerTech's 'industrial partnership' operating model means that the company has nothing to sell and focuses specifically on the products of other companies. Its CEO explains why oil and gas solutions and medical devices are its strongest fields, and how it is targeting China and North America.

The Tennessee Valley Authority's remit – a federally owned utility company with responsibilities towards community development in a vast area of the US's south-east – means that it stands out from other energy companies and development agencies. Indeed, this unusual structure is working to it advantage when it comes to attracting investment to the region.

Malaysia's minister of international trade and industry, Mustapa bin Mohamed, tells Barbara Njau that Kuala Lumpur's role has been and remains integral to Malaysia's rise as a global trade hub.

While much of the oil and gas activity in Malaysia takes place away from Kuala Lumpur, the city has established itself as a global leader in energy terms, with foreign energy firms increasingly coming to the capital to establish a south-eastern Asian base.

The availability and connectivity of mobile phones in Africa has resulted in a hike in telecommunications investment in the continent in recent years, coupled with an explosion in innovation. But, asks Barbara Njau, is this boom sustainable?