More than 130 guests attended 50th anniversary celebrations for the Air Conditioning and Refrigeration Equipment Manufacturers Association of Australia (AREMA).
A long list of industry veterans, government officials and even a few industry legends attended the event at Taronga Zoo in Sydney.
The guest performer was comedian Jean Kittson who is also a scriptwriter for stage, television, radio, magazines and newspapers.
See the following photo gallery for all the highlights from the event.