Welcome to Sustainable Infrastructure Systems (SIS)SIS is a unique organisation focused on manufacturing and distributing sustainable and recycled products for diversified clients around the world. From recycled plastic, recycled wood plastic composites (WPC), fibreglass reinforced plastic (FRP), recycled rubber through to co-extruded multi-composites and OEM manufacturing, SIS are market leaders in delivering sustainable products to customers in Civil Infrastructure, Building & Construction, Oil & Gas, Mining, Aviation, Aquaculture, Marine & Ports, Transport & Logistics and Agriculture.Drawing on a strategic distribution capability with offices in Adelaide, Melbourne, Sydney, Brisbane, Shanghai, Shenzhen, Hong Kong and Los Angeles, SIS has manufacturing facilities in Australia, the People?s Republic of China and North America.Our company is financially strong, total quality oriented, technically advanced, and customer focused.