Place the fish on a heatproof plate that fits inside your steamer. Score the fish on both sides with a few diagonal cuts.
Scatter the scallions and ginger over the fish.
In a small bowl, mix together the soy sauce, Shaoxing wine, vegetable oil, sugar, salt, and pepper. Pour the mixture over the fish.
Carefully place the plate with the fish in the steamer basket, cover, and steam for 15-20 minutes or until the fish is cooked through and the flesh is opaque.
Garnish with cilantro and serve the fish hot, with steamed rice and vegetables.
Garnish with cilantro and serve the fish hot, with steamed rice and vegetables.