Nigeria, Sept. 7 -- Dangote Refinery has completed the endorsement of the offer documents for its initial public offering, putting it on course to launch the $1.6 billion public equity sale, regarded as Africa's largest ever, next week.

Aliko Dangote, Africa's richest man and owner of the 700,000 barrel-per-day (bpd) plant, led the sign-off ceremony in Lagos on Monday in the presence of advisers and other parties to the pan-African offering, which aspires to source about N2.2 trillion from investors.

The minimum subscription of the offer is 10 ordinary shares, translating to N5,250, Mr Dangote told the event.

Lagos-based Vetiva Advisory Services Limited is coordinating the capital raise.

The ceremony follows a key approval by the capi...