Is egg added in the filling for Chinese Dumplings?!

Some recipes may use egg, but the times I've made them, I haven't and the filling held together just fine.

The recipe I usually use is:
1 lb ground pork
1 1/2 napa cabbage, chopped
1 tbsp fresh ground ginger (more is OK)
2 cloves garlic, minced (more is OK)
1/4C soy sauce
1 tbsp sesame oil

Take a cookie sheet and line it with a clean dish towel or paper toweling. Spread the cabbage on the toweling and sprinkle liberally with salt. Cover with another towel, and another cookie sheet. Use a few cans to weigh down the cookie sheet, pressing against the cabbage. Leave for an hour.

After an hour, briefly rinse the cabbage to remove the salt and then squeeze the cabbage in a towel to get out as much water as possible. This is absolutely key to having a filling that will stay together without needing egg or other binder.

Add all the ingredients, including the cabbage, into a large bowl and mix with your hands like you're making meatloaf.

Optional - set in the refrigerator for an hour. This helps the flavors mingle better.

Use a rounded spoonful per dumpling. Seal the edges with some water or egg wash and crimp as desired. Be sure you get all the air out when you seal the dumpling.

Cook them immediately, or place them on a cookie sheet so they aren't touching one another, and place into your freezer. Once frozen, they can then be put into a ziplock bag, tagged, and kept frozen for up to 12 months - just be sure to remove the air from the bag with a straw. Voila. Homemade vacuum sealed dumplings, just like the ones you buy in stores...only healthier and cheaper.

Add eggs if the recipe calls for eggs (though I think they usually do). It depends on the other ingredients in the flour and how they would interact with the eggs.

My parents owned a Chinese restaurant.

Yeah, you;ll need to add the egg. I use egg white. Some people use the whole egg.
The high gluten flour is a great idea. You really need to make sure those dumplings hold together after kneading.

Some types of dumplings do contain egg in them. :)

yes i do add egg to my dumplings.

yeah add egg to the flour