HMH Holding Inc. is a holding company. The Company focuses on the design, engineering, manufacturing, supply, integration, installation, and lifecycle support of drilling equipment, drilling systems, and related mechanical, hydraulic, and digital solutions for industrial applications. It includes product design and engineering, fabrication and assembly, systems integration, project execution, testing, commissioning, maintenance, repair, refurbishment, spare parts supply, technical support, and aftermarket services of installed equipment. It provides drilling equipment, drilling systems, components, and services for offshore and onshore oil and gas drilling operations, subsea and surface drilling applications, and adjacent markets including mining, construction, and other industrial sectors, supported by manufacturing capabilities, engineering services, project management, and aftermarket technologies.