Soak the shrimp in warm, salted water for 5 minutes. Rinse in cold water, drain, and pat dry with paper towels.
In a medium bowl, marinate the shrimp with salt and sugar. Mixture with the egg and corn starch respectively.
Heat a pot of oil until its 160-170℃, add the shrimp balls to the hot oil, until they are crisp and golden (3 to 4 minutes). Remove the shrimp balls from the hot oil and drain them on paper towels.
Place the shrimp balls in a pot, stir in the Sweet & Sour Sauce and mix well.