- Current passport (with at least 6 months validity)
- Completed visa application form
- Confirmation of online payment receipt
- Confirmation of online acknowledgment slip
- 2 passport size pictures
- Letter of invitation from the Host company, in Nigeria, accepting full immigration and financial responsibility as well as stating the purpose of visit (and duration of stay)
- Letter of introduction from applicant’s company or organization
- Holders of non–U.S passports must provide proof of legal residency (photocopy of green card, resident visa, work permit, or necessary visa page).