Automotive OEMs are suppliers who make parts according to the requirements of automobile manufacturers. These parts are only allowed to be provided to automobile manufacturers and 4S stores. They are not allowed to be provided to other automobile manufacturers or to markets other than 4S. Its basic meaning is to use the original unit's trademark for product development and manufacturing according to the original unit (brand unit) entrustment contract. The following is the relevant introduction: 1. Meaning: The basic meaning of OEM is OEM production cooperation, commonly known as "OEM". That is, brand producers do not directly produce products but use the "key core technologies" they have mastered to design and develop new products. They control sales and sales "channels" but have limited production capacity and do not even have production lines or factories in order to increase output and sales in order to reduce The risk of launching a new production line is even to gain market time by entrusting other similar product manufacturers to produce the ordered products through contract ordering, buying them out at a low price and directly affixing their own brand trademarks. This cooperation method of entrusting others to produce is called OEM. The manufacturer that undertakes this processing task is called an OEM manufacturer, and the products it produces are OEM products. 2. Production process: ODM is when Party B entrusts Party A with technical requirements to produce products according to Party B's requirements and then acquires them. It is a legal partnership based on contractual authorization. OBM means that the products produced by a company do not have its own brand and are specially produced by OEM or ODM requirements of other companies for other companies.