Summary
Operating Income rose +40.5% in 1Q on higher Metals segment earnings. That puts progress against the full-year Operating Income target of JPY 14,000M at 36.3% (our estimate). The key focus for 2Q is how the gap between the 1Q average copper price of 604.38¢/lb and the company's 550¢/lb assumption flows through to 1H cumulative earnings. Copper concentrate sales volumes were below the prior-year period, so we want to confirm whether price effects can continue to offset lower volumes. Below the operating line, equity-method investment losses, FX losses and higher interest expense held Recurring Profit flat YoY. Gains on sales of shares, booked as extraordinary income, lifted Net Income, and we will assess whether this pattern continues. The Arqueros Mine is expected to contribute to consolidated production from 4Q onward. In 2Q, the P&L impact of front-loaded costs from the delayed production start, and whether full-year guidance is revised, will shape the assessment of this growth investment.
Key Points for Next Quarter
| Key Points & Focus | Implications |
|---|---|
Metals Segment VolumesYoY change in copper concentrate sales volume and Metals segment profit | 1Q segment profit was JPY 2,019M (+157.6%). Copper concentrate sales volume fell by 2,569t. Whether price effects keep outweighing lower volumes will drive 1H earnings. |
Gap to Full-Year Plan1H cumulative Recurring Profit progress against full-year plan and any guidance revision | 1Q Recurring Profit progress stood at 38.9% (our estimate). The plan implies 2Q–4Q Operating Income of JPY 8,912M, down 41.4% versus the same period last year (our estimate). |
Growth Investment ProgressProduction start timing | Expected production start has been pushed back from July–September 2026 to within FY2026, with consolidated production contribution from 4Q onward. The focus in 2Q is disclosure of the earnings impact of the delay. |
Non-Operating and Extraordinary ItemsEquity-method investment gains/losses, FX gains/losses, interest expense, gains on sales of investment securities | 1Q net non-operating loss was JPY 617M, in line with the JPY 2,500M loss built into the full-year plan (our estimate). A JPY 2,759M gain on sales of shares explains the gap between Recurring Profit and Net Income growth. |
Ores Segment VolumesYoY change in limestone sales volume and Ores segment profit | 1Q limestone sales volume was 5,199kt (-9.1%), with segment profit of JPY 2,478M (-0.3%). As this is the largest profit contributor, we want to see whether volumes recover. |
Key Issues from Previous Results (FY3/2027 1Q Results)
1Q Revenue was JPY 57,406M (+24.4%) and Operating Income JPY 5,088M (+40.5%), with the Metals segment driving company-wide revenue and profit growth. Higher non-operating expenses, however, left Recurring Profit flat at JPY 4,470M (-0.6%). Net Income rose +45.0%, boosted by gains on sales of shares. Full-year guidance was maintained. With growth investment underway at the Arqueros Mine and the US subsidiary, the overarching issue is whether 1H results are consistent with plan assumptions.
1. Metals Segment: Balancing Copper Price/FX Effects Against Sales Volumes
- Previous Quarter: Metals segment Revenue was JPY 34,737M (+41.8%) and segment profit JPY 2,019M (+157.6%). Higher domestic selling prices for electrolytic copper and gold, together with higher earnings at the Atacama Mine, drove the increase.
- This Quarter's Check: Copper concentrate volume declined to 7,497t (-2,569t). We will check whether price and FX effects can continue to offset this.
- Key Metrics: YoY change in 1H cumulative Metals segment profit, copper concentrate sales volume, and average copper price and FX rate. Copper price and FX should be compared against the full-year assumptions of 550¢/lb and JPY 155/USD.
2. Progress Against Full-Year Plan and Revision of Assumptions
- Previous Quarter: Full-year guidance calls for Operating Income of JPY 14,000M (-25.6%) and Recurring Profit of JPY 11,500M (-43.1%). The figures announced on May 13, 2026 were left unchanged.
- This Quarter's Check: The 1Q average copper price of 604.38¢/lb was 9.9% above the 550¢/lb assumption (our estimate). We want to see whether guidance is revised in light of 1H results.
- Key Metrics: 1H cumulative Recurring Profit progress against the full-year plan (prior-year 1H cumulative: JPY 9,566M), any guidance revision, and 2H copper price and FX assumptions.
3. Arqueros Mine: Growth Investment Progress and Balance Sheet
- Previous Quarter: Construction in progress stood at JPY 53,946M (+JPY 6,134M vs. beginning of period), and long-term borrowings at JPY 53,069M (+JPY 8,350M on the same basis).
- This Quarter's Check: The Arqueros Mine is targeting a production start within FY2026, with consolidated production contribution from 4Q at the earliest. In 2Q, we will check for any P&L impact from front-loaded costs caused by the delayed start.
- Key Metrics: Balances of construction in progress and interest-bearing debt, and commentary on the Equity Ratio (48.4% at end-1Q).
4. Divergence Between Recurring and Bottom-Line Profit: Non-Operating Expenses and Share Sale Gains
- Previous Quarter: Non-operating items included an equity-method investment loss of JPY 450M, an FX loss of JPY 322M and a derivative valuation loss of JPY 290M. Extraordinary income included a JPY 2,759M gain on sales of investment securities.
- This Quarter's Check: Interest expense rose to JPY 242M from JPY 126M a year earlier. We will track the trend as borrowings increase and check whether equity-method results improve.
- Key Metrics: 1H cumulative equity-method investment gains/losses, FX gains/losses, interest expense and cumulative gains on sales of investment securities. We will also monitor Net Income progress against the full-year plan (39.9% in 1Q, our estimate).
5. Ores Segment: Limestone Volumes and Unit Prices
- Previous Quarter: Ores segment Revenue was JPY 17,363M (+4.1%) and segment profit JPY 2,478M (-0.3%). Sales volumes of limestone, the core product, declined.
- This Quarter's Check: Limestone volume fell 9.1% while revenue fell only 4.6%, implying a 5.0% rise in the average selling price (our estimate). We will check whether unit price improvement can offset lower volumes.
- Key Metrics: YoY change in 1H cumulative limestone sales volume and revenue, overseas limestone and related revenue (JPY 1,410M in 1Q, -21.1%), and Ores segment profit.
Key Timely Disclosures During the Quarter
- 2026/10/07Progress Toward Production Start at the Arqueros Mine Development Project - The company announced that it has secured access to the mine and is continuing plant construction. Discussions with relevant authorities to obtain power supply permits are ongoing. The company is targeting a production start within FY2026, and contribution is an item to check from 3Q onward.
- 2026/10/01Status of Share Buyback - Treasury shares stood at 2,522,877 at end-1Q, up from 1,317,977 at the beginning of the period. Continued buybacks provide support for EPS.
- 2026/09/04Delay in Expected Production Start at the Arqueros Mine - Rain damage to roads and bridges, along with delays in power supply permits, pushed back the expected July–September 2026 production start. The earnings impact is under review, making the content of the 2Q results disclosure a key focus.
Previous Quarter Results (FY3/2027 1Q Actual)
The company is a resources group whose earnings rest on two pillars: the Ores segment, centered on limestone, and the Metals segment, which handles electrolytic copper and copper concentrate. It also operates Machinery & Environment, Real Estate and Renewable Energy businesses. In addition to the Atacama Mine in Chile, it is developing the Arqueros Mine and acquiring interests in the US and elsewhere. 1Q revenue and profit rose on price effects in the Metals segment, with profit progress tracking ahead against full-year guidance.
| Item | Amount | YoY | vs. Company Plan | Notes |
|---|---|---|---|---|
| Revenue | JPY 57,406M | +24.4% | - | Higher domestic selling prices for electrolytic copper and gold. Full-year plan progress of 24.7% (our estimate) |
| Operating Income | JPY 5,088M | +40.5% | - | Operating Income Margin improved to 8.9% from 7.8% a year earlier (our estimate). Higher Metals segment profit |
| Recurring Profit | JPY 4,470M | -0.6% | - | Equity-method investment loss of JPY 450M and FX loss of JPY 322M |
| Quarterly Net Income Attributable to Owners of Parent Company | JPY 4,782M | +45.0% | - | Gain on sales of investment securities of JPY 2,759M; gain on sales of fixed assets of JPY 421M |
| EPS | JPY 61.27 | +46.2% | - | 39.9% progress against full-year EPS forecast of JPY 153.72 (our estimate) |
Guidance Achievement Rate (Recurring Profit Basis): 38.9% (prior-year period: 22.2%) The prior-year figure is prior-year 1Q Recurring Profit of JPY 4,496M divided by prior-year full-year actual of JPY 20,221M (our estimate).
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