News

Our production plans for the 2nd half of the fiscal year ending March 31, 2026, are as follows.

Period	October 2025 to March 2026
Refined Copper	30,701 metric tons per month
Refined Lead	2,333 metric tons per month
Refined Gold	1,642 kg per month
Refined Silver	18,250 kg per month

(Reference)

	April 2025 to September 2025 (previous 6 months plans)	October 2024 to March 2025 (year-on-year results)
Refined Copper	35,590 metric tons per month	30,643 metric tons per month
Refined Lead	2,345 metric tons per month	2,304 metric tons per month
Refined Gold	2,667 kg per month	3,448 kg per month
Refined Silver	22,000 kg per month	25,399 kg per month

Note on year-on-year comparison

• Total refined copper production is expected to remain almost the same as in the same period of the previous year. Production at Naoshima Smelter & Refinery will increase by approximately 25% because no maintenance is scheduled this year.
  Production at Onahama Smelter & Refinery is anticipated to decrease by approximately 25% due to the strategic plan to scale down copper concentrate processing at Onahama Smelter & Refinery.
• Refined gold and silver production is expected to decline mainly due to the absence of Gresik slime acceptance and the planned reduction in copper concentrate processing at Onahama Smelter & Refinery.

<Contact details for inquiries>

Corporate Communications Dept.
+81-3-5252-5206