Finely chop the kimchi and slice the green onions, separating the white and green parts.
In a large skillet or wok over medium-high heat, add the diced pork belly and cook until the fat renders and the edges are golden and crispy.
Add the ground pork and minced garlic to the skillet, breaking the meat apart with a spatula until fully browned and cooked through.
Stir in the chopped kimchi and gochujang, sautéing for 2 minutes until the mixture is fragrant and slightly caramelized.
Add the chilled jasmine rice and tamari to the pan, pressing down with the spatula to break up clumps and frying until the rice is coated and steaming hot.
In a separate small non-stick pan, heat the sesame oil over medium heat and fry the egg until the whites are set but the yolk remains runny.
Season the rice with sea salt and black pepper, then fold in the white parts of the green onions.
Plate the fried rice, top with the fried egg, and garnish with the remaining green onion tops for a fresh finish.