The world's primary futures exchange for non-ferrous and minor metals — the price-discovery engine for copper, aluminum, lead, zinc, nickel, and tin.
## What is the LME? The **London Metal Exchange** trades futures and options on industrial metals. Its 3-month forward price is the global reference price for almost every nonferrous metal. ## Tickers used in scrap - **Copper:** Cu (HG on COMEX). - **Aluminum:** Al. - **Lead:** Pb. - **Zinc:** Zn. - **Nickel:** Ni. - **Tin:** Sn. ## How WeighPay handles LME WeighPay pulls LME 3-month forward prices from a licensed feed and applies them to every material code in the operator's price list — with the operator's chosen delta.