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Data Launch Overview
Data on the estimated impact and actual impact of China copper smelting maintenance on copper cathode production, covering monthly and annual dimensions from 2016 to 2026, with data units in 10kt.
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Data Coverage
Monthly data: Estimated maintenance impact from January 2016 to December 2026, and actual maintenance impact from January 2016 to September 2026
Annual summary: Estimated maintenance impact from 2016 to 2026, and actual maintenance impact from 2016 to 2025
Data dimensions: Includes two dimensions—estimated maintenance impact and actual maintenance impact—with four datasets across monthly and annual frequencies
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Data Update Rules
3.1 Estimated Maintenance Impact
SMM formulates estimated monthly maintenance impact data for the current year based on the production schedules of China copper smelters collected at the beginning of each year. This estimated data serves as the baseline reference for full-year maintenance impact.
3.2 Actual Maintenance Impact
Actual monthly maintenance impact data is updated on the last working day of each month, synchronized with the monthly copper cathode production data.
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Data Deviation Explanation
There may be significant deviations between estimated maintenance impact and actual maintenance impact. The main reasons include:
Adjustments or changes to enterprise maintenance schedules
Unexpected maintenance events
Other unforeseeable production disruption factors
When using the data, please note the differences in scope between estimated and actual data. It is recommended to rely on the actual updated data.
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Launch Date and Data Access
SMM plans to launch this data on September 30, 2026, at which point clients can view it on the SMM terminal.
For the complete data table, please refer to: SMM Data Terminal - Copper - Copper Cathode - Production
Nonferrous Metals Data_Nonferrous Metals Industry Data_Shanghai Metals Market
Data Source Statement: Except for publicly available information, all other data is processed by SMM based on public information, market communication, and SMM's internal database models. It is for reference only and does not constitute decision-making advice.