World Spring Development Co. is the branch of Korea Dong Woo Ind Co. Ltd. in China, which take the responsibility of squid liver powder sales in China, meanwhile develop trade relationships between China and Korea. We have many good cooperating partners and enjoy good fame in both Korea and China. For years, we are developing areas in foods, pharmacy, electronics, arts and crafts, and so on. In this way we promote the trade relationships between Korea and China. We also make great efforts in trade with other countries and have established good fame and company image in U.S.