Dice the pork belly into small pieces and sear in a large cast-iron skillet over medium-high heat until the fat renders and the meat becomes golden and crispy.
Cut the pork loin into small cubes, season with sea salt and black pepper, and add to the skillet with the pork belly.
Cook the pork loin until browned on all sides, then remove all meat from the pan and set aside, leaving the rendered fat in the skillet.
Add the minced garlic and the white parts of the sliced green onions to the pan, sautéing for 30 seconds until fragrant.
Add the cooked jasmine rice to the skillet, spreading it into an even layer and pressing down firmly to allow the bottom to develop a crispy, toasted crust.
Stir in the chopped cabbage kimchi, tamari, gochujang, and the cooked pork, tossing everything together until the rice is evenly coated and heated through.
In a separate small non-stick pan, fry the egg until the whites are set but the yolk remains runny.
Transfer the fried rice to a bowl, top with the fried egg, and garnish with the remaining green onion tops.