For someone who don't know about BHP closed down. 

THE closure of BHP's Newcastle steelmaking plant on Thursday, September 30, 1999, was the end of an era.

As The Herald noted at the time, BHP had helped make Newcastle and Newcastle had helped make BHP. The city and steelmaking had been synonymous for 84 years and the closure represented a watershed in Australian industrial, economic and social history. Read more here