Sounds like your application will be processed in Hong Kong. So use the Hong Kong checklist.
This is from the Beijing visa office website:
"
3. Beijing or Hong Kong: Which visa office will process my family member's application for a permanent resident visa?The Canadian Consulate General, Hong Kong is responsible for processing applicants being sponsored in the Family Class who reside in the following regions of South China:
* Fujian Province
* Guangdong Province
* Guangxi Autonomous Region (Guangxi Zhuangzu Zizhiqu)
* Hainan Province
* Hong Kong Special Administrative Region
* Macau Special Administrative Region
Applicants residing in other parts of the PRC and in Mongolia will be processed at the Canadian Embassy, Beijing. "
http://geo.international.gc.ca/asia/china/immigration/beijing/family-class-en.aspx