CHICAGO--(BUSINESS WIRE)--Advisory Research, Inc., which owns approximately 3.25% of Miller Industries' (NYSE: MLR) ("Miller" or the "Company") outstanding shares, today sent the below letter to the Company's Board of Directors (the "Board"). *** March 21, 2024 Miller Industries 8503 Hilltop Drive, Suite 100 Ooltewah, TN 37363 Attn: The Board of Directors (the "Board") Members of the Board, Advisory Research, Inc. (together with its affiliates, "Advisory Research" or "we") is a long-term, top s