This excerpt taken from the C 10-K filed Feb 26, 2010.
Due to living conditions in Dubai, you are eligible for a hardship allowance. The amount of the allowance is a variable percentage of your base salary (capped at $150,000), which for your assignment location is currently 10% per month. Hardship allowances are reviewed periodically (generally, annually) and are therefore subject to change. Citigroup will pay any taxes due on this allowance.
During the term of your assignment you will not be an employee of CGML Dubai or Citibank NA Dubai Branch. You shall remain an employee of the Citigroup employing entity as set out in your employment contract which will be lending your services to the Investment Banking Division of CGML Dubai pursuant to an inter-company agreement for the supply of employee services.
EMPLOYEE BENEFITS AND COUNTRIES DEFINED