OEM (Original Equipment Manufacturer)
A manufacturing model where the factory produces goods to the buyer's own design and specifications, often sold under the buyer's brand.
TL;DR: In sourcing, OEM means the factory makes a product based on the buyer’s design, drawings, and specifications. The buyer owns the design and usually sells the product under its own brand.
The term has two meanings. In industries such as automotive, an OEM is the company whose brand is on the final product. In China sourcing, OEM usually describes a service: the factory manufactures to your instructions. You supply the design, the specifications, the quality standards, and often the branding and packaging requirements.
OEM gives the buyer control over the product and makes it easier to stand out from competitors. The trade-off is responsibility. You must provide complete, clear technical information, and mistakes in your specifications become mistakes in the product. OEM orders may also involve higher MOQ, tooling or setup costs, and longer lead times than buying existing products.
Compare OEM with ODM (Original Design Manufacturer), where the factory supplies its own existing design and the buyer mostly adds branding or small changes.
When placing an OEM order in China, put key specifications in writing, including materials, dimensions, colors, tolerances, and packaging, and reference them in the Proforma Invoice or contract. Approve a PPS (Pre-Production Sample) before mass production. If your design is valuable, consider registering your trademark in China and using a written agreement that covers design ownership and confidentiality.