Steamed Sea Bass with Ginger and Spring Onion

Name: Steamed Sea Bass with Ginger and Spring Onion (Qing Zheng Lu Yu 清蒸鱸魚)
Cuisine: Chinese
Ingredients: 5 spring onions; 1 sea bass, about 700 g, scaled and cleaned, but with head and tail intact; 3 tbsp light soy sauce or tamari; Salt; 4 tbsp cooking oil; 50 g piece of ginger; 1 tbsp Shaoxing wine