LME:London Non-Ferrous Metals (LME) The LME is the world's largest non-ferrous metals exchange, and prices and inventories on the LME have a significant impact on the production and sale of non-ferrous metals worldwide.

The London Metal Exchange (LME) is the world's The LME is the world's largest non-ferrous metals exchange, established in 1876, trading copper, aluminum, lead, zinc, nickel, and aluminum alloys, and the exchange's prices and inventories have a significant impact on the production and sale of non-ferrous metals worldwide.

In the mid-19th century, the United Kingdom was the world's largest producer of tin and copper. As time went on, industrial demand grew and Britain was desperate to import large quantities of industrial materials from foreign mines.

Since the turn of the century, the London Metal Exchange has publicly published its transaction prices and is widely used as the benchmark price for world metal trade. Seventy percent of the world's total copper production is traded on the basis of the LME's official list price.

The London Metal Exchange has an international membership system, with more than 95% of its trading coming from overseas markets, and trading is conducted both on and off-exchange. The London Metal Exchange publishes a series of official prices on a daily basis, which are used in the industry as the basis for pricing physical metal contracts.