Engineering firm Downer EDI is expecting to employ 220 people over four years, after it prepares the Roy Hill iron ore mine for production.

Agribusiness Elders has reported an annual loss of $505 million, in line with previous guidance, but says its big financial writedowns are finished.

Electronics retailer Dick Smith is set to hit the share market in a $345 million float, but analysts question whether it will be a good investment.