Incorporated in 1991, Srikalahasthi Pipes Ltd. (SPL; erstwhile Lanco Industries Ltd.) is one of the leading producers of ductile iron (DI) pipes in India. With a production capacity of 3 lac TPA of DI pipes, SPL's facility is located at Tirupathi (AP). SPL also manufactures pig iron, cement, low ash metallurgical coke & generates power for captive consumption.