LMI is a three generation strong family owned and operated aggregates mining company that provides sand and gravel products f ... or oil and gas well services, highway construction, commercial construction, residential construction, and industrial uses. The Welch family has a long track record of providing the highest quality products and unmatched service to customers for over 36 years. Our customers are our extended family, and we are proud to say that our very first customer 36 years ago is still a customer today. read more