The ExOne is a global provider of three-dimensional (3D) printing machines and 3D printed and other products, materials and services to industrial customers. Co.'s business primarily consists of manufacturing and selling 3D printing machines and printing products to specification for its customers using its installed base of 3D printing machines. Co. provides pre-production collaboration and print products for customers through its network of ExOne Adoption Centers. Co. also supplies the associated materials, including consumables and replacement parts, and other services, including training and technical support for purchasers of its 3D printing machines to print products.