X0306 5 2019-12-31 1 0 0 0001293613 Kayne Anderson MLP/Midstream Investment Co KYN 0000225602 MASSACHUSETTS MUTUAL LIFE INSURANCE CO 1295 STATE STREET SPRINGFIELD MA 01111 1 Former 10% Owner Series C MRPS due 2020 572000.0000 D Series FF Senior Unsecured Note 3600000.0000 D Series GG Senior Unsecured Note 500000.0000 D Series JJ Unsecured Senior Notes 13000000.0000 D Series KK Senior Unsecured Note 15600000.0000 D Series JJ Unsecured Senior Notes 500000.0000 I By Barings LLC Series KK Senior Unsecured Note 600000.0000 I By Barings LLC Series C MRPS due 2020 28000.0000 I By C.M. Life Insurance company Series FF Senior Unsecured Note 400000.0000 I By YF Life Insurance International Limited Series JJ Unsecured Senior Notes 500000.0000 I By YF Life Insurance International Limited Series KK Senior Unsecured Note 800000.0000 I By YF Life Insurance International Limited Barings LLC is a subsidiary of the Reporting Person. C.M. Life Insurance Company is a wholly-owned subsidiary of the Reporting Person. The inclusion of YF Life Insurance International Limited held securities of the Issuer shall not be construed as an admission that Massachusetts Life Insurance Company is, for the purpose of Section 16 of the Securities Exchange Act of 1934, the direct or indirect beneficial owner of any of the securities of the Issuer beneficially owned by YF Life Insurance International Limited. YF Life Insurance International Limited, formerly known as MassMutual Asia Limited was previously an indirect wholly-owned subsidiary of the Reporting Person. /s/ Alethea O'Donnell, Head of Corporate Compliance 2020-02-14