Jin Song Tang

John Holland Pty Ltd. provides construction and engineering services. It offers contracting and services capabilities, from tunneling, building and civil construction solutions in the infrastructure sector to the delivery of water and environment, energy, minerals, and industrial projects in the energy and resources sector. The firm also provides services to the transport sector and specializes in railway construction, operations and maintenance, aviation services, and ports infrastructure and maintenance. The company was founded in 1949 and is headquartered in Melbourne, Australia.

John Holland Group Pty Ltd. provides infrastructure and property development services. It offers services to airports, commercial development and leasing, education and research, health care, industrial and resources, government, residential, private sector, tourisms, and energy sectors. The company was founded by John Holland on May 16, 1949 and is headquartered in Melbourne, Australia.