Old Jin Milling Square, established in 1912, is a brand advocating the consumption of whole grains for health, which has been passed down three generations. It is affiliated with Hangzhou Old Jin Food Co., Ltd., and is a century-old food enterprise that integrates the research and development, production, and of health food with the principles of "pure natural, no additives" and "food and medicine share the same origin".

The strong alliance between Old Jin Milling and Hangzhou Mandan aims to launch a fashionable black sesame product, which will promote the standardization of food products, improve the overall quality of the black sesame industry, create a hit product.