Callington Group is a speciality chemical developer and manufacturer, headquartered in Sydney Australia with manufacturing and technical sales operations in 14 countries. ISO9001 accredited, supplier to global aviation, Defence, marine and industries. Manufacturing ROX Fuel Additives since 1970 for industry, transport and marine. The ROX biofuel correctives for straight biofuels and blends are antioxidants, biocides, combustion improvers, stability improvers, corrosion inhibitors, pour point depressants and cold flow improvers.