Inventory Control Supervisor. Amex Distributing Co., LP. Amex Distributing Co., LP specializes in cold storage and warehousing services for the fresh produce industry. Among the items we handle are mango, avocado, cucumber, pepper, squash, onion, green beans, and more. We are located just a few miles from the USA/Mexico border in Pharr, Texas. The Inventory Control Supervisor is responsible for supporting the Inventory Control Manager on all matt...