Place pork belly and ginger slices in a pot, cover with water and bring to a boil. Reduce heat and simmer for 30-35 minutes until cooked through.
Remove pork from water and let cool completely. Chill in refrigerator for easier slicing.
Slice the cooled pork belly thinly, about 2-3mm thick.
Heat 1 tablespoon oil in a wok over medium-high heat. Stir-fry vegetables until crisp-tender, about 2-3 minutes. Remove and set aside.
Add remaining oil to wok. Fry pork slices until golden and crispy on both sides, about 3-4 minutes.
Add chili bean paste, soy sauce, Shaoxing wine, and sugar to the pork. Stir well to coat.
Return vegetables to wok, toss everything together and heat through for 1 minute.
Serve immediately with steamed rice.