AOI manufactures the world's premium matcha tea. Using an approach that embraces our wholesome, rich, 100-year history of matcha, AOI has grown to become one of the worlds leading matcha manufacturers. AOI possesses the supply capacity to provide matcha to world class companies. Our goal at AOI is simple. To ensure our customers receive the most authentic, high quality matcha with the highest safety standards in the industry. This way our customers know that they are consuming only the best our company has to offer. AOI is comprised of highly skilled professionals who can evaluate the complex and distinct intricacy of tea. Our dedication to detail and level of service we provide our customers is second to none in the industry.aoi matcha tea bowl AOI is accredited with FSSC2200, AIB Superior, Kosher, and Organic, and routinely undergoes quality-control and thorough taste-testing by our trained tea sommeliers. Our product-first mentality is highlighted by the wide-range of customers, from major world class companies and boutique tea shops that choose AOI each and every day.