Copper-Foil Leader; Ongoing Breakthroughs in High-End Products

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Defu Technology (301511) — In-Depth Research Report

Copper-Foil Leader; Ongoing Breakthroughs in High-End Products


Key Data Snapshot

Metric Value
Ticker 301511.SZ
Rating Accumulate / Outperform (initial)
Report date March 2026

Earnings Forecast & Valuation

Metric 2023A 2024A 2025E 2026E 2027E
Revenue (RMB mn) 6,531 7,805 10,390 12,150 13,896
Growth (%) 2.4% 19.5% 33.1% 16.9% 14.4%
Net profit to parent (RMB mn) 133 -245 112 334 450
Growth (%) -73.7% -284.8% 145.7% 198.0% 82.9%
EPS (RMB) 0.2 -0.4 0.2 0.5 1.0
P/E 116.8 -63.2 138.3 46.4 25.4
P/B 2.4 3.6 2.0 3.9 1.5

Investment Thesis

I. Domestic copper-foil leader; scale edge

Defu is a leading Chinese electrodeposited copper foil producer, focused on Li-battery foil and CCL / PCB foil R&D, production, and sales. Products serve NEV power & storage batteries, consumer electronics, and PCBs.

II. High-end product progress

Battery foil:

  • Thinner gauges (4.5 μm, 4 μm) R&D and ramp
  • High-tensile / high-elongation grades advancing

CCL / PCB foil:

  • RF / high-speed grades improving
  • Positioned for 5G, AI servers, and other premium apps

III. Capacity & cost

  • Ongoing expansion to defend share
  • Scale and process improvement for unit cost
  • Procurement leverage on inputs

IV. Downstream demand

NEVs: battery demand; more foil per pack trend

Storage: rapid volume, new growth pillar

PCB: 5G infrastructure; AI servers lift high-end foil demand


Financial Analysis

Main ratios

Metric 2023A 2024A 2025E 2026E 2027E
Profitability
Gross margin 7.6% 2.1% 6.5% 8.2% 10.3%
Net margin 1.7% -4.3% 1.9% 4.5% 6.5%
ROE 3.1% -6.1% 2.7% 7.7% 10.3%
ROA 0.9% -1.6% 1.3% 3.6% 5.8%
Solvency
Debt-to-assets
Efficiency
Asset turnover

Risks

  1. Copper price volatility
  2. Demand below expectations
  3. Industry competition
  4. Capacity ramp delays

Source: Guojin Securities Research