Cook the jasmine rice following package instructions. Once cooked, fluff gently and keep warm.
Heat a large pan over medium heat. Add oil and allow it to warm until slightly shimmering.
Add the ground chicken to the pan. Break it apart into small crumbles using a spatula. Spread it evenly and cook for 5 to 7 minutes until fully cooked and lightly browned in some areas.
Add minced garlic and chopped chilies. Stir well and cook for 1 to 2 minutes until fragrant.
Pour in soy sauce, oyster sauce, fish sauce, and brown sugar. Mix thoroughly so all the chicken is coated. Let it cook for 2 to 3 minutes until the sauce slightly thickens and clings to the chicken.
Turn off the heat. Add Thai basil leaves and stir gently until the leaves are wilted but still vibrant.
To serve, add rice to bowls and spoon the chicken mixture on top. Allow the sauce to soak into the rice for best flavor.