Yes, tea tree oil can remove chewing gum stains. Tea tree oil can remove most of the hardest stains whether it be water stains or soap scum, therefore, chewing gum stains will come off easily if used on the stains. However, you need to know that tree oil is likely to leave some marks on your clothing fabric if applied directly: hence, it is best to add them to a wash before use. If by accident, you happen to have some tea tree oil stains on your cloth after use, treat the stained spot with oxygen bleach immediately.