Hong Kong and Cambodia today signed a comprehensive avoidance of double taxation agreement.
The agreement sets out the allocation of taxing rights between the two jurisdictions, which will help investors better assess their potential tax liabilities from cross-border economic activities.
Under it, any tax paid in Cambodia by Hong Kong companies will be allowed as a credit against the tax payable in Hong Kong on the same income, subject to the provisions of Hong Kong tax laws.
In full: https://www.news.gov.hk/eng/2019/06/20190626/20190626_153743_974.html