Joy Global Inc. is a Fortune 1000 company with an integral role in the mining industry. It manufactures and services heavy machinery used in underground and surface mining. Its underground mining machinery business operates primarily through subsidiary Joy Mining Machinery, a brand known for its longwall mining products and systems. while the other division, P&H Mining Equipment provides a complementary role as a surface mining equipment manufacturer and servicer, largely in the business of large excavating and drilling machines. The company also deals in aftermarket parts.