Should I register my trademark using the local language characters in Thailand?

Yes, to ensure wider and stronger protection in Thailand, it's advisable to register your trademark in local characters.

If you only register your trademark in its original form (Latin characters), it might not fully protect its equivalent in the local language. This could allow others to use or register the same or a similar trademark in local characters.

Besides the legal advantages, registering and using the trademark in local characters can also offer commercial benefits. People in Thailand will find it easier to recognize and pronounce your brand if it's in a familiar script.

Registering your trademark both in its original form and in a local transliteration or translation will offer better protection against potential infringements.