Who is gs1 australia? GS1 Australia is the only officially licenced barcode provider with authority to supply GTINs for the Amazon marketplace in Australia. GS1 Australia and the Drinks Association have announced a new strategic partnership to drive industry standards development and adoption to improve business and supply chain efficiency in the drinks industry.How do i contact the gs1 office? United States Phone: + 1 937 435 3870 Website: www.gs1us.org Email: [email protected] Why do i need a gs1 number? All products need a unique identification number from GS1 to be able to sell them online or in stores GS1 barcodes are scanned over 6 billion times each day, driving commerce around the globe. GS1 is the only official provider of GS1 GTINs and EAN/UPC barcodes globally.Is gs1 australias complex sign up process worth the cost? With GS1 Australia’s complex sign up process and costly annual fees as well as confusing industry terms like EAN 13, UPC A and ITF 14, it can seem overwhelming when obtaining just a single barcode number for your product.