March 23. 2017

*UBS March 23. 2017 UBS Financial Services Inc. 1285 Avenue of the Americas 20th Floor NOW York, NY 10019 wmv.ubscom GHISLAINE MAXWELL P.O. BOX 308 TEANECK. NJ 07666-0308 Notice Unaudited tax estimate for AlphaKeys Millennium Fund, L.L.C. (EN: 27-5238213) for the year ending December 31, 2016 Based on the most current information available. we are providing you with the following tax estimate for your investment in AlphaKeys Millennium Fund. L.L.C. (the Fund) for the year ending December 31, 2016. Why this Is important The figures provided below reflect estimated tax results for the year. They are derived from incomplete information and do not reflect final tax information for the year. The mailing of your Schedule K-1 for 2016 is dependent on the Funds receipt of the 2016 Schedule K-1 from the underlying Investment Fund. We estimate that you will receive your final 2016 Schedule K-1 for this Fund by the end of June 2017 and recommend that you file for an extension f