America. Wyeth company belongs to the United States. Wyeth milk powder is no longer produced and sold in the United States. Now the milk source of Wyeth milk powder is imported. In addition to the well-known Wyeth Qifu, there are also high-quality milk producing areas from New Zealand and Australia. Wyeth milk powder overseas has two producing areas, one is New Zealand and the other is Ireland. Wyeth is one of the world's top 500 enterprises and one of the largest research and development-oriented pharmaceutical and health care products companies in the world. Wyeth is a world leader in the research, development, manufacture and sales of drugs, vaccines, biological products, nutritional products and over-the-counter drugs.