Trademarks are subject primarily to local Trademark Offices but, with increasing globalization of trade, follow more encompassing international agreements and bilateral treaties.
We recommend you complete a formal application process to register your trademark in your country before you engage in any commercial activity. Registration of a trademark not only formalizes your property rights and protects you in trademark litigation, but helps you seek registration of your mark in foreign jurisdictions.
Seek professional advice especially if your trademark and your business extend beyond your government's legal authority. The practice of international trademark law is complicated and always changing. Requirements and the application process may differ across countries.