I kindly request to explain how to apply a tourist L for my mother- a Srilankan passport holder

I hold a Canadian passport . I applied buisness visa today from Colombo . Ill get it by Thursday. My mother is running her own business . She is wealthy lady too. and she doesn't have any friends in China too.. My mother would like to accompany to the china journey with me as tourist.. She would like to see Chinese culture ..and the Chinese Great wall etc. Its a pleasure for me too because I"m the only son for her..So I could take care of her everything (food , lodging ,transport etc) ..I really appreciate for your early reply please Thank you