About us. HANNIBAL CONCRETE PRODUCTS is a small business in Hannibal, MO. We are professional, agile, fast-paced and our goal is to provide quality pre-cast concrete structures to the tri-state area. Our work environment includes. On-the-job training. Opportunities for advancement. Job Summary: We are seeking a skilled and reliable Laborer to join our team. As a Laborer, you will be responsible for assisting with various tasks to support our oper...