中海达：公司从美国进口原材料占比极少，国内有同类替代产品

Group 1 - The company stated that its core technology is independently controllable and does not rely on technology imported from the United States [1] - The proportion of raw materials imported from the United States is minimal, and there are domestic substitutes available [1] - The company's international business primarily targets markets in Asia, South America, and Europe, with no sales in the United States, thus not affected by U.S. tariff policies [1]