Mitsubishi Materials Corporation

Our production plans for the 2nd half of the fiscal year ending March 31, 2027, are as follows.

Period

October 2026 to March 2027

Refined Copper

23,714 metric tons per month

Refined Lead

2,250 metric tons per month

Refined Gold

1,233 kg per month

Refined Silver

16,250 kg per month

(Reference)

April 2026 to September 2026

(previous 6 months plans)

October 2025 to March 2026

(year-on-year results)

Refined Copper

29,236 metric tons per month

28,945 metric tons per month

Refined Lead

2,274 metric tons per month

2,482 metric tons per month

Refined Gold

1,175 kg per month

1,616 kg per month

Refined Silver

17,917 kg per month

20,028 kg per month

Note on year-on-year comparison 
• Copper production is expected to be 23,714 tons per month, down 18% from the same period of the previous fiscal year, due to scheduled maintenance shutdowns at the Naoshima Smelter & Refinery and the Onahama Smelting & Refinery.

 

• Lead production is expected to be 2,250 tons per month, down 9% from the same period of the previous fiscal year.

 

• Gold and silver production are expected to be 1,233 kg per month and 16,250 kg per month, down 24% and 19%, respectively, from the same period of the previous fiscal year, due to a reduction in slime feed resulting from the scheduled maintenance shutdown at the Naoshima Smelter & Refinery.
 

End

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