The copper‑foil industry faces a double‑edged market: soaring demand amid a tech‑sector sell‑off

The Shenzhen‑listed company Anhui Tongguan Copper Foil Group Co Ltd. (TGCF) sits at the nexus of a global shift in electronics manufacturing and a broader turbulence in Asian equity markets. While the A‑share market and the Shenzhen Composite index plunged on 23 June, TGCF’s own shares closed at CNY 196.5, a figure comfortably above the 52‑week low of CNY 12.03 yet still far from the 52‑week high of CNY 202.15 recorded a few days earlier. With a market cap of CNY 162 901 million and a price‑earnings ratio of 440.13, the stock remains heavily discounted relative to earnings, reflecting the broader pressure on semiconductor‑related supply chains.

1. Global demand for high‑frequency copper foil (HVLP)

Analysts at Dongwu Securities and research from Frontier Capital project that the demand for HVLP copper foil – a critical substrate for high‑frequency printed circuit boards – will surge by 260 % in 2026, reaching 2.4 t. The trend is driven by the rapid expansion of AI server farms and large‑scale GPU clusters. By 2027, the forecast is for 5 t and a projected jump to 11 t by 2030. These figures underscore the structural need for copper foil in the evolving digital economy.

TGCF’s strategy aligns with this trajectory. The firm has already been expanding its production capacity and modernising its furnaces to meet the stringent surface‑roughness requirements of next‑generation HVLP foil. The company’s earnings have been supported by a mix of contract work for major PCB manufacturers and a growing portfolio of long‑term supply agreements.

2. Market turbulence in Asia

On 23 June, Asian equity markets entered a “black‑Friday” of declines:

  • The Shanghai Composite fell 1.37 %.
  • The Shenzhen Component dropped 3.17 %, while the ChiNext (innovation board) slid 3.84 %.
  • The Korea Composite plunged 9.99 % and triggered a circuit‑breaker event, while Nikkei 225 fell 3.55 %.
  • In Hong Kong, the Hang Seng slipped 1.82 %.

The fall was largely attributed to a sector‑wide retreat in technology stocks. Major chipmakers such as Samsung Electronics and SK Hynix were among the largest losers, each falling over 12 % in intraday trading. The sector’s drag reverberated across the Shenzhen market, where PCB‑related stocks, including TGCF, experienced a sharp correction.

Conversely, the pharmaceutical sector displayed an inverse trend. Stocks in biomedicine and chemistry, especially those involved in innovative drug development, rallied. The Chinese regulator’s approval of a new dual‑target antibody (BL‑B01D1/i) boosted related companies, exemplifying a “sector rotation” where investors sought safety in defensive, high‑growth segments.

3. Liquidity flows and sector rotation

A review of the June 22 trading day shows that non‑bank financials and non‑silver metals attracted the largest inflows, capturing 109 billion yuan in net capital. In contrast, the electronics sector witnessed a 190 billion yuan net outflow, driven by the sale of high‑profile names such as Tianfu Communications and Dongshan Precision.

For TGCF, this means that while the broader market sentiment was negative, the company’s core material (copper foil) remains a necessary input for the electronics manufacturing value chain. The dual forces of rising demand for AI infrastructure and a cautious tech sector create a complex backdrop: prices may remain stable or even rise due to supply constraints, but market volatility can depress equity valuations.

4. Implications for investors

  1. Valuation pressure: With a PE ratio of 440.13, TGCF trades at a steep discount relative to earnings. The current market environment may further widen this gap if investors continue to favour defensive sectors.
  2. Fundamental support: The forecasted demand growth for HVLP copper foil provides a long‑term tailwind for TGCF. If the company can scale its capacity and secure forward contracts, earnings potential could justify a higher valuation multiple.
  3. Risk of short‑term volatility: The recent sell‑off in technology stocks suggests that TGCF shares will be sensitive to market swings. Investors should monitor sector‑wide trends and liquidity flows to gauge potential retrenchment periods.
  4. Strategic positioning: The firm’s recent production upgrades and contractual commitments position it well to capture the projected demand surge. However, continued investment in capacity and quality control will be critical to maintain its competitive edge.

5. Outlook

The copper‑foil market is poised for growth, driven by the explosive expansion of AI servers and high‑frequency electronics. TGCF’s alignment with this trend, coupled with its expanding production footprint, offers a solid growth narrative. Nevertheless, the volatile Asian equity landscape—particularly the recent tech sell‑off—necessitates a cautious approach. Long‑term investors may view the current discount as an opportunity, while short‑to‑mid‑term traders should remain alert to broader market rotations and sector‑specific liquidity dynamics.