In a large bowl, combine soy sauce, sugar, ginger powder, garlic powder, sesame oil, salt, and ground black pepper. Stir.
Put-in pork chop and marinate overnight (or at least 3 hours)
Heat-up the grill, and then grill both sides of the marinated pork chops. Make sure to flip the sides every 2 to 3 minutes to avoid it from getting burnt. Don't forget to baste with the remaining marinade.
Arrange in a plate and sprinkle with sesame seeds.