Wipe the chicken fillets dry with paper towels and cut into half-inch strips.
Whisk the egg white until foamy.
Place the chicken in a bowl, pour in the egg white and mix well.
Stir together the soy sauce, oyster sauce, Shaoxing rice wine and sesame seed oil. Add the starch and mix until incorporated.
Add the sauce to the chicken, mix well, cover the bowl and marinate in the fridge for at least two hours.