March 28, 2024 Press Release from the Mercer County Fairgrounds: Celina, Ohio – March 21, 2024 – Mercer County Fairgrounds is thrilled to announce a generous pledge of $10,000 from Preferred Insurance, headquartered in Coldwater, Ohio, towards the Grand Event Center + Market Hall project. This significant contribution will be distributed over the next five years, aiding in the realization of this ambitious project, slated for completion by 2028.