Firma Tech is a company based at Macleans Ridges, New South Wales.

They don't have a web presence as yet, but as you can see from the photos below, they appear to make a good product, though I haven't actually seen any of their bricks.

If you contact these people, can you please tell them you found them on the Rammed Earth website.

Rammed Earth Brick Wall
Rammed Earth Brick Wall
For more information and a brochure, contact Firma Tech directly;

Snail Mail: Phone: 
Mark & Jane Duffy 
2  Pearson Rd Mcleans Ridges 

Within Australia: (02) 6628 0630
International: +61 2 6628 0630