Brand introduction of Yangyang 100 milk powder Yangyang 100 milk powder is a brand of Yangyang Century Co., Ltd., whose main business is the production of infant milk powder. This brand of milk powder is mainly sold domestically and is one of the well-known milk powder brands in the country. Product Identification and Ingredient Description It can be seen from the product packaging that the packaging of Yangyang 100 milk powder is marked with the words \”Made in China\” and mentions its production location and manufacturer information. The main ingredients of Yangyang 100 milk powder include whey protein powder, vegetable oil, and glucose.