Processing OEM (Original Equipment Manufacture) are the basic meaning of OEM cooperation, commonly known as "foundry." Is that producers do not directly produce brand products, but use their hands the "key core technology," responsible for the design and development of new products, control sales and marketing "channels" and the limited production capacity, and even the production line, plant have not, in order to increase production and sales up in order to reduce the risk of new production lines, and even time in order to win market by way of ordering the contract entrusted to other manufacturers to produce similar products, what are the low-priced buyout Products and directly affixed its own brand trademarks. Commissioned the production of such forms of cooperation which is OEM, the mission to undertake this process was known as the manufacturer of OEM manufacturers, whose products are OEM products.

Processing assembly processing trade that is trade, also referred to as processing. Refers to imported materials and parts provided by foreign companies, without payment of imports, manufactured goods from foreign sales, charging fees of enterprises of processing trade, imports of raw materials and benefits of ownership of the right to belong to foreign investors.

Assembly processing trade is one of the main mode of foreign trade, general trade and are the corresponding trade.

Assembly processing trade is one of the main mode of foreign trade is with the general trade corresponding to the processing trade also known as the "two out" in the form of processing. Refers to international trade, the provision of raw materials from foreign manufacturers, in accordance with the designated product specifications standards and quality requirements processing production, sales of finished products delivered to the other side of a productive form of trade. Specific approach has: ① by providing all or part of foreign raw materials, materials, auxiliary materials, manufactured goods to pay foreign sales, processing enterprises to collect fees only; ② by providing all or part of foreign raw materials, materials, auxiliary materials, the main parts, accessories and packaging materials, finished paying foreign sales, but raw material imports and exports valued separately; ③ foreign addition to providing some or all raw materials, but also provide some equipment, tools, dies, etc., and its price generally repaid from the fees.