Learn more about the ZAI Trust and find out whether you may be eligible for partial reimbursement of your abatement costs, even if you have already completed removal. The Zonolite Attic Insulation Trust (ZAI Trust) was created to help educate the public about the possible health effects of asbestos-containing vermiculite and to provide partial reimbursement for ZAI removal to qualified claimants. The Trust is expected to operate for a minimum of 20 years. W.R. Grace's plan of reorganization became final on February 3, 2014.