Soak the glutinous rice with clean water at least for 24 hours. Move out and drain.
Heat up water in wok and put the steamer on. Steam the rice for around 15 minutes. Then transfer the rice out to a plate.
Heat up cooking oil on wok or pan, add chopped pork in to stir-fry until the color changes and then put carrots, mushrooms and green beans and corns in. Keep stir-frying for another 3 minutes.
And then add the steamed rice in along with salt, five spicy powders, light soy sauce and black pepper powder in. Keep going and mix well.
Scoop around 1 tablespoon of filling to place in the middle of the wrapper in your left hand. And then use the thumb and index finger to frap the shummai around 1/3 from the edge. And modify the shape according.
Brush some oil on the bottom of the shummai and steam for another 15 minutes.
Serve hot!
Notes
Do not eat too much at one time since the glutinous rice is not too easy to digest.