Reddish brown color. No preservatives added. No preservatives added. Made with non GMO soybeans. Hong Kong. www.LKK.com. Lee Kum Kee Premium Dark Soy Sauce is made from naturally brewed soy sauce. Its rich soy flavor and full-bodied color will delicately enhance the flavor and appearance of various dishes. This soy sauce is made from soybeans that were not genetically engineered. LKK since 1888. Product of China.