Place the diced pork belly in a cold wok or large non-stick skillet and turn the heat to medium-high.
Sauté the pork belly for 5-7 minutes until the fat has rendered and the edges are crispy and golden brown.
Add the minced garlic and chopped kimchi to the skillet, stirring frequently for 2 minutes until fragrant and slightly softened.
In a small bowl, whisk together the gochujang and coconut aminos until smooth.
Add the chilled jasmine rice to the skillet, breaking up any clumps with a spatula, and pour the gochujang mixture over the top.
Toss the rice with the pork and kimchi for 3-4 minutes, pressing it down into the pan occasionally to create crispy bits.
Push the rice mixture to one side of the skillet and pour the liquid egg whites into the empty space.
Gently scramble the egg whites until fully cooked, then fold them into the rice mixture.
Remove from heat and stir in the toasted sesame oil, sliced green onions, sea salt, and black pepper.
Serve immediately while the rice is hot and the pork is crunchy.