Combine the chicken stock, Maggi seasoning, Chinese cooking wine, garlic, ginger and star anise in a large saucepan over high heat. Bring to the boil, then reduce heat to low and simmer for 5 minutes for the flavours to develop.
Meanwhile, pour one whole can of corn kernels along with the liquid into a food processor or blender. Process until well chopped but not pureed. You still want some chunks in it. Set aside.
After the soup has simmered for 5 minutes, add the pureed corn, the remaining can of corn along with its liquid and the cornflour slurry to the saucepan. Increase heat to high and bring to the boil, stirring often or until the soup thickens slightly. Reduce heat to a simmer.
Whilst stirring constantly, add the eggs in one go and continue stirring until the egg sets and has formed 'ribbons' of sorts. Add the chicken and most of spring/green onions (reserve some for garnish). Simmer for further 2-3 minutes or until heated through. Season to taste and serve hot, in bowls. Garnish with reserved spring/green onions and a drizzle of sesame oil and chilli oil if desired.