The hike in prices grew Dangote Sugar Refinery's revenue by 41.5 percent.
Okonkwo is also the company’s CEO.
The research revealed that pertinent cultural factors influence women's entrepreneurial journeys in the region.
Some have implied that Africa's richest man played a role in the scandal.
After a six-month pilot program, Nigerian payments platform Paystack has launched operations in South Africa.
The Abdul Samad Rabiu Initiative has made its inaugural donation to help improve social development in Africa.
The billionaire's net worth peaked at $18.4 billion earlier this year in January.
The businessman and philanthropist addressed the subject during an interview with Arise TV.
A bank run has started at First Bank of Nigeria after a recent scandal concerning its board of directors and the Central Bank.
The Central Bank has dissolved the defunct board of First Bank of Nigeria, expelling Honeywell Group founder Obafoluke Otudeko and Ibukun Awosika as chairpersons.