OEM is only a form of OEM. Manufacturers produce products on behalf of trademark holders according to their needs and authorization. Nowadays, many large wineries are specialized in OEM, which are spread all over the world.
Xijiu used to be a series of Maotai products, but it was separated for some special reasons. However, Xijiu still adheres to the traditional maotai-flavor production technology and selects high-quality sorghum grains as raw materials.