Mexico City Airport Trust is a financing trust that has the benefit of an assignment of all airport passenger charges generated by Mexico City's existing Aeropuerto Internacional de la Ciudad de México and future charges from the city's new airport, which is under construction to accommodate growth in demand. The trust has announced that it is raising about US$1 billion of senior secured debt (which could be upsized depending on market conditions), the first phase of a total debt raising of about US$6 billion over the next two-to-three years. We are assigning our 'BBB+' preliminary rating to the trust's proposed debt. The rating reflects our expectation that charges from the existing airport alone could support repayment of the debt, without
