Gail Borden invented the process to create condensed milk in 1853. Nestlé licenced the product and in 1874 "EAGLE Sweetened Condensed Milk by assignment of the Borden company", was the first brand ever to be trademarked and sold in China by Nestlé. A Nestlé sales office was later opened in Shanghai in 1908.
Very nice example of early branded content marketing to drive consumer education and engagement: A 1930's Nestlé Lactogen baby care guidebook for young Chinese mothers. The Lactogen brand was first introduced in 1919 and Nestlés history in China goes back to 1908 when it opened it's first distribution office in Shanghai.