Headquartered in St. Louis, Missouri, Arch Chinese is an online Mandarin Chinese system founded by a group of passionate and experienced bilingual Chinese teachers in 2008. Our mission is to develop a high quality system to help serious Chinese language learners study Mandarin Chinese in a practical, effective and enjoyable manner. Tailored for English speakers who have no or little knowledge of Mandarin Chinese, Arch Chinese has grown to be one of the most popular and most respected Chinese learning and teaching tool sites on the web.

Since the beta release, we have received great feedback from many users around the world. Special thanks to the following individuals for their guidance and suggestions:

• Professor Tim Xie, Department of Asian and Asian American Studies, California State University, Long Beach.
• Professor Hongyin Tao, Chinese Language and Linguistics & Applied Linguistics and TESL, Department of Asian Languages and Cultures, University of California, Los Angeles.
• Julia Espina, Alex Mitrofanov, John Delrowe, Kevin Bogle, Peter Van Bruggen, John Goodson, Gurf Yeo, May Ditan, Cindy Franklin, Regis Cheval, Li-Ling Cheng, Christine Tsai, Elizabeth Yew, Htoo MYINT, Lauren Spear,Grace Wang, Isa Almisry and many others.

Our Chinese-English dictionary uses the word entries from CEDICT, a public domain Chinese-English dictionary created by Paul Andrew Denisowski.