Who is eligible to join a Vanuatu citizenship-by-investment application?

I am applying for the program but want to add my sibling, who is also my business partner. How do I add her? Is she an eligible dependent? Who else can join my application?

Answers

On Laszlo Kiss answered:

Unfortunately, siblings cannot be included in one application with the main applicant. However, the spouse, children under 18, dependent children and dependent parents can be included for an additional $10,000 U.S. dollar donation to the Vanuatu Development Support Program.