All copper product costs are calculated considering copper price. The main difference between LME and SMM copper prices lies in their geographical focus, pricing mechanism, and market purpose.
Copper Street Elbows by SCOTTFRIO factory
While both are used as benchmarks, the LME is the global standard for financial hedging and futures, whereas SMM is the leading physical "spot" price benchmark for the Chinese domestic market.
Comparison Table
| Feature | LME (London Metal Exchange) | SMM (Shanghai Metals Market) |
| Market Scope | Global benchmark (international trade). | Domestic China benchmark (local trade). |
| Pricing Type | Futures & Options (primarily). Based on exchange trading. | Spot Price. Based on actual daily physical transactions. |
| Currency | US Dollars (USD). | Chinese Yuan (CNY). |
| Unit of Measure | Metric Tonne ($/mt). | Metric Tonne (¥/mt). |
| Primary Use | Financial hedging, global contracts, and investment. | Physical procurement, domestic contract pricing in China. |
| Participants | Global miners, institutional investors, and international manufacturers. | Chinese smelters, local traders, and domestic manufacturers. |
| Drivers | Global macro, inventories | Chinese demand, premiums, imports |
Market Function: Futures vs. Spot
· LME: It is a futures exchange. The price is discovered through open outcry (the "Ring") and electronic trading. It reflects the global sentiment and expectations of copper's value weeks or months into the future. Refer to website: www.lme.com
LME copper price
· SMM: It is a price reporting agency (PRA). SMM does not "trade" copper itself; instead, its analysts survey dozens of buyers, sellers, and traders daily to determine what price the metal is actually selling for on the ground in China. Refer to website: www.metal.com
SMM copper price
Geographical & Supply Chain Differences
· LME prices reflect the global supply-demand balance, particularly in Europe and the Americas. It includes the cost of metal sitting in LME-approved warehouses worldwide.
· SMM prices are specifically tailored to the Chinese industrial chain. It accounts for Chinese domestic taxes (like VAT), local logistics, and specific regional supply-demand imbalances in hubs like Shanghai or Guangdong.
Price Composition (Tax & Premiums)
· LME prices are "Duty-Unpaid": They do not include local import duties or value-added taxes (VAT).
· SMM prices are "All-In": In China, SMM copper prices typically include the 13% VAT. Furthermore, SMM often quotes a "Premium/Discount" which indicates how much more (or less) physical copper is being sold for compared to the futures price on the SHFE (Shanghai Futures Exchange).
Why they don’t match exactly?
The two prices rarely match up perfectly. The difference between them (often called the LME-SMM spread) is influenced by:
· Currency Fluctuations: The USD/CNY exchange rate.
· Import Costs: Ocean freight, insurance, and China’s import duties.
· Exchange rates: USD↔RMB
· Premiums/disounts in China
· Arbitrage Opportunities: If SMM is much higher than LME (after adjusting for tax), traders will buy copper globally to ship it to China, eventually closing the gap.
· Short-term supply tightness in China
Summary for Business
If you are buying copper components or raw materials within China, your supplier including SCOTTFRIO will almost certainly quote you based on the SMM price plus a small fabrication fee, SMM price is basis for copper products trade in domestic market. If you are negotiating an international contract or hedging your price risk on the stock market, you would use the LME as your reference point. Normally in HVACR copper industry, copper tubes are traded following LME copper price, but other copper items like fittings and refnet joints, etc., are all calculated based on SMM copper price.