And what about the savings in Hong Kong’s bank account, multi currencies (USD, HKD etc) just filed it in T1135 when I need to file
Convert all your assets to Canadian dollar at the rate you landed in Canada and keep the records.
You may have exchange gain/loss when you finally convert them in Canadian dollars.
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/personal-income/line-12700-capital-gains/completing-schedule-3/bonds-debentures-promissory-notes-other-similar-properties/foreign-currencies.html
Foreign currencies
Foreign exchange gains or losses from capital transactions of foreign currencies (that is, money) are considered to be capital gains or losses. However, you only have to report the amount of your net gain or loss for the year that is more than $200. If the net amount is $200 or less, there is no capital gain or loss and you do not have to report it on your income tax and benefit return.
Report your net gain or loss in Canadian dollars. Use the exchange rate that was in effect on the day of the transaction. If there were transactions at various times throughout the year, you can use the Exchange Rates or Annual Average Exchange Rates (1997 to 2018).