The spot market copper price of the day refers to the main trading price range of cathode copper in the main trading hours of the day. The lower limit is the lowest price of Pingshui copper, and the upper limit is the highest price of Shui Sheng copper and Chile CCC copper. It was determined after collecting the prices of major markets and production and business units in the city.

Spot premium: refers to the spot price of the day is higher than the spot selling price of the futures of the day;

Spot discount: the spot price of the day is lower than the spot selling price of the futures of the day.

The spot copper price is based on the real-time selling price of copper futures on the current day of the month, and with the increased discount amount, the spot copper price generally fluctuates with the change of the real-time selling price of futures.