Foreign-Sourced Income

If I read Article 18 correctly, pensions originating in Canada are not taxable in Thailand. Did I read this correctly? Also, am I ever going to need to deal with Thai tax if I remit money to my account in Thailand. I see the statement that any amount over 120K Baht for a single is taxable. I assume that it won’t apply to me as I’m not a tax resident of Thailand. Again, am I correct on reading that?