Separate the juice from the pineapple chunks. Set the chunks aside.
Combine the pineapple juice, pork, and 1 teaspoon salt. Mix and then marinate for 3 hours.
Heat oil in a wok
When the oil becomes hot, add-in the ginger and then cook for 10 seconds.
Add the garlic and onion. Cook until the onion becomes soft.
Drain excess liquid from the marinated pork, and then put the pork in the wok. Stir fry for 3 minutes or until the color of the pork becomes light to medium brown.
Add Hoisin sauce, soy sauce, and oyster sauce. Stir.
Put-in the pineapple chunk, red bell pepper, scallions, carrots, and broccoli.
Continue to stir-fry for 5 to 8 minutes. Add salt and pepper to taste.
Transfer to a serving plate.
Serve. Share and enjoy!