Google Input Tools uses the following data.
Wubi IME for Chinese
Licensed Content of Wangma Wubi (五笔字型) from Beijing Wangma Innovation Network Technology Co., Ltd. (北京王码创新网络技术有限公司). Contact Wangma company by the number of +86 (10) 8256-3185 or by www.wangma.com.cn.
Cantonese IME for Chinese
- Content from Kaifangcidian, which is under the license Creative Common Attribution 3.0 (中文).
- Licensed content from Language Creation (言葉社).