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研报4月30日 · Morgan Stanley

Nonferrous Metals & Mining: Mar Domestic Aluminum Stats: Output of Rolled Products Up YoY for 2nd Straight Month; Thick

5714.T5016.T5711.T5706.T5703.T5713.T
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Japanese Aluminum Rolled Products: SPE Thick Plate Surge Confirms Semiconductor Equipment Recovery; Favor Selective Exposure

Core Conclusion: Bifurcation Intensifies – SPE and Auto Demand Strong, Extrusion Weak

March 2026 Japan Aluminium Association data show total rolled products output up 6.8% YoY to 152 kt, the second consecutive monthly rise. Shipments grew 6.3% YoY to the same tonnage. The market's focus on aggregate growth obscures a critical structural shift: the "other applications" category (primarily thick plates for semiconductor production equipment, SPE) surged 23.6% YoY to 7.5 kt, following a strong February. Automotive sheet shipments rose 14.5% YoY, consistent with vehicle output (+1.0% YoY in February). The extrusion segment (construction) is likely dragging the overall figure, but the pure-play SPE and auto aluminum processors—UACJ (5741.T), Nippon Light Metal (5703.T), and Mitsubishi Materials (5711.T)—are positioned for earnings upgrades that consensus has yet to reflect.

Evidence Chain

1. SPE thick plate demand is not a one-month anomaly

  • March "other applications" shipments (≈SPE thick plates) were 7.5 kt, +23.6% YoY. February was also strong (+26.4% implied from trend). This represents the second month of double-digit growth, confirming a recovery trajectory.
  • Q1 FY2026 total production (Jan–Mar) reached 413 kt, +1.2% YoY, indicating broader industry supply response.
  • Investment implication: SPE thick plates carry higher margins than standard rolled products. UACJ and Nippon Light Metal are the primary beneficiaries; volume and earnings revisions are likely in the upcoming quarterly guidance.

2. Automotive aluminum demand remains robust and volume-accretive

  • Automotive sheet shipments rose 14.5% YoY to 13.1 kt in March, outpacing vehicle output growth.
  • February vehicle output was 747,503 units, +1.0% YoY, providing a baseline. Light-weighting trends imply aluminum content per vehicle is increasing, supporting volume growth above car production.
  • Investment implication: Automakers' stable production underpins demand for aluminum sheet. Trade friction risks exist but domestic production data show no immediate weakness. Mitsubishi Materials and UACJ supply this segment.

3. Production growth signals inventory rebuild, but total shipments mask the structural divergence

  • Production +6.8% YoY vs shipments +6.3% YoY suggests some inventory accumulation.
  • Extrusion segment (construction, general) is likely contracting, as indicated by negative YoY in the underlying chart data. The positive total is driven solely by sheet applications (cans +3.6%, auto +14.5%, SPE +23.6%).
  • Investment implication: Broad aluminum exposure is misleading. The opportunity lies in sub-sectors tied to semiconductor equipment and automotive light-weighting.

Key Risks

  • Semiconductor equipment capex cycle: If F3/27 (fiscal year ending March 2027) sees a capex slowdown, SPE thick plate demand could decelerate. Current equipment order data remains firm, but macro shocks could disrupt.
  • Automotive trade headwinds: Japanese auto exports face tariff risks in key markets. Any disruption could reduce demand for automotive aluminum sheet, currently a stable component.
  • Input cost pressure: Aluminum ingot price volatility and yen depreciation compress conversion spreads for rolling companies. Margin sensitivity is higher for pure-play rollers.

Investment Implications (Valuation & Trade)

The industry view is In-Line, but the data support selective overweight within the sector. Primary beneficiaries:

  • UACJ (5741.T): Pure-play aluminum roller with heavy exposure to SPE thick plates and automotive sheet. Current valuation (P/E ~16x on consensus) does not embed the SPE volume recovery; earnings upgrades likely in H1 F3/27.
  • Nippon Light Metal (5703.T): Similar exposure with additional upside from can stock demand.
  • Mitsubishi Materials (5711.T): Diversified but aluminum division benefits; non-ferrous exposure provides a hedge against input cost volatility.

Avoid companies with heavy construction extrusion reliance. The SPE recovery is the most underappreciated driver in the sector over the next 12 months.

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