[Ash Grove A longtime leader in the cement manufacturing industry, Ash Grove Cement Company, headquartered in Overland Park, Kansas, operates cement and lime plants in nine states across the country. The nine cement plants operating in the Ash Grove system are some of the most efficient and best maintained in the country. With an annual production capacity of more than 7.8 million tons of cement, Ash Grove is the fourth-largest cement manufacturer in the United States.]