The AM Group’s entry into the North American market was through the acquisition in 1996 of the Diamond Roll-Up Door business located in Upper Sandusky, Ohio, USA.

At the time Diamond manufactured timber sectional overhead truck doors. The AM Group was able to provide the business with access to a large range of aluminum truck roll up door products used heavily in the fire engine, emergency vehicle, ambulance and maintenance vehicle markets.

The original Diamond factory has been extended 3 times since 1996 and another 40,000 sq. ft. building was purchased across the road in 2001 to accommodate further growth. In FY 2006 over US$1.0 million was spent on capital equipment to improve production capacity and quality. Revenues in this business have increased 5 fold since acquisition.

The development of the Diamond Evolution composite door for trucks and trailers was revolutionary for the market. Diamond has continued to develop new and unique products for the transport industry.

Diamond has also benefited from the acquisition of the Dover Roller Shutter business in the UK as a significant volume of Dover’s product was exported to the USA.

The AM Group has provided Diamond the intellectual property to provide niche proprietary roll up door products for the commercial and industrial building markets in the US.

US sales revenues constitute approximately 15% of the total group.