ata (nasdaq: atai) is the largest professional services provider for testing, assessment and related services in china, as well as the most effective adaptive e-learning solution provider based on advanced assessment technologies. leveraging our state-of-the-art technologies; operated with extensive experiences in test operations and administrations; through a delivery network of over 3000 test centers across the country; ata has been providing professional test and assessment services for government authorities, academic institutions, corporate clients and tens of millions of test candidates since 1999.