Tongwei Co., Ltd. (600438.SH): 3Q25 Earnings Review – Significant Loss Narrowing Driven by Polysilicon Margin Recovery

Date: October 27, 2025
Ticker: 600438.SH (Shanghai Stock Exchange)
Rating: Recommend (Maintained)
Target Price: CNY 22.93 (Current Price as of Oct 27, 2025)
Analysts: Deng Yongkang, Zhu Biye, Wang Yiru, Lin Yutao | Minsheng Securities Research Institute

Executive Summary

Tongwei Co., Ltd. ("Tongwei" or the "Company"), a global leader in high-purity crystalline silicon and solar cells, released its third-quarter financial report for 2025 on October 24, 2025. The results indicate a pivotal inflection point in the company’s profitability trajectory, driven primarily by a structural improvement in the polysilicon segment. While the first nine months of 2025 reflected continued pressure from industry-wide overcapacity and price wars, the third quarter (3Q25) demonstrated a marked reduction in losses, signaling that the worst of the cyclical downturn may be passing for the upstream materials sector.

Key Financial Highlights for 3Q25:
* Revenue Stability: Quarterly revenue stood at CNY 24.09 billion, representing a slight year-over-year (YoY) decline of 1.57% and a quarter-over-quarter (QoQ) decrease of 1.97%. This stability amidst volatile pricing suggests resilient shipment volumes.
* Significant Loss Narrowing: The attributable net loss for 3Q25 was CNY 315 million, a substantial improvement compared to previous quarters. Similarly, the non-GAAP net loss (deducting non-recurring items) narrowed to CNY 442 million. This represents a dramatic sequential recovery in earnings quality.
* Cash Flow Turnaround: Operating cash flow turned strongly positive, reaching CNY 4.78 billion in 3Q25. This shift underscores improved working capital management and the beginning of margin normalization in core operations.

Core Investment Thesis:
The primary driver behind the 3Q25 performance improvement is the "anti-involution" (anti-excessive competition) policy framework implemented by Chinese regulatory authorities, which has effectively halted destructive price wars in the polysilicon sector. Coupled with seasonal cost advantages during the wet season in Sichuan and Yunnan provinces, Tongwei’s polysilicon margins have expanded significantly. Although the downstream cell and module segments remain under pressure, regulatory interventions are expected to propagate price repairs through the entire supply chain.

We maintain our "Recommend" rating for Tongwei shares. We project the company to return to profitability in 2026, with estimated attributable net profits of CNY 3.05 billion in 2026 and CNY 6.03 billion in 2027. Based on the closing price of CNY 22.93 on October 27, 2025, the stock trades at an estimated Forward P/E of 34x for 2026 and 17x for 2027. Given Tongwei’s status as the lowest-cost producer in the industry and its robust balance sheet, we believe the current valuation offers an attractive entry point for institutional investors anticipating a sector-wide recovery in 2026.

Key Takeaways

1. Financial Performance Analysis: The Turning Point in Profitability

1.1 Nine-Month Overview: Navigating the Trough

For the first nine months of 2025 (9M25), Tongwei reported total operating revenue of CNY 64.60 billion, a YoY decline of 5.38%. The company recorded an attributable net loss of CNY 5.27 billion and a non-GAAP net loss of CNY 5.47 billion. While these figures reflect a widening loss compared to the same period in the prior year, it is crucial to contextualize this within the broader industry landscape. The photovoltaic (PV) industry has been undergoing a severe consolidation phase characterized by prices falling below cash costs for many producers. Tongwei’s ability to limit losses relative to peers highlights its operational resilience and cost leadership.

1.2 Third Quarter Breakdown: Sequential Improvement

The 3Q25 data provides a more relevant forward-looking indicator than the cumulative nine-month figures.

The decoupling of revenue stability from profit expansion indicates that the primary lever for earnings growth in the near term is margin expansion, not necessarily top-line growth. This is consistent with a supply-side constrained recovery where prices rise faster than volumes.

1.3 Cash Flow Dynamics

The surge in operating cash flow to CNY 4.78 billion in 3Q25 is a critical signal of health. In previous quarters, negative or low operating cash flows were a concern due to inventory write-downs and receivables pressure. The reversal suggests:
1. Inventory Valuation Stabilization: As polysilicon prices rose in July-September, the need for aggressive inventory impairments diminished.
2. Improved Receivables Collection: Better market discipline has likely improved payment terms from downstream customers.
3. Cost Control: Effective management of production costs during the wet season contributed to higher cash margins.

2. Segment Analysis: Polysilicon Leading the Recovery

2.1 Polysilicon: Price Repair and Cost Advantage

The polysilicon segment is the crown jewel of Tongwei’s portfolio and the primary engine of its recent financial turnaround. Two distinct factors converged in 3Q25 to drive profitability: Regulatory Price Floors and Seasonal Cost Reductions.

A. The "Anti-Involution" Policy Impact on Pricing
According to data from the China Silicon Industry Association, polysilicon prices hit rock bottom in late June 2025. At that time, the average prices for N-type recycled material and granular silicon were CNY 34,400/ton and CNY 33,500/ton, respectively. These levels were significantly below the comprehensive production costs of most manufacturers, leading to unsustainable losses across the sector for over a year.

In early July 2025, the regulatory environment shifted decisively. To comply with new regulations prohibiting sales below cost ("anti-involution" measures), silicon material enterprises collectively raised prices to above the comprehensive cost line.
* July Price Hike: Quotes for silicon material jumped to the CNY 45,000–50,000/ton range, representing a sharp increase of 25–35% from June lows.
* September Levels: By the end of September 2025, the average price for N-type recycled material reached CNY 53,200/ton, and granular silicon reached CNY 50,500/ton.
* Magnitude of Recovery: Compared to the June bottoms, these prices represent increases of 55% and 51% respectively.

This price restoration is not merely a temporary spike but a structural correction enforced by regulatory oversight aimed at preserving the long-term viability of the domestic PV supply chain. For Tongwei, as the largest producer, this translates directly to gross margin expansion. Assuming a stable cost base, every CNY 1,000/ton increase in polysilicon price flows almost entirely to the bottom line, given the high operating leverage of chemical processing plants.

B. Seasonal Cost Advantages (Wet Season)
Tongwei’s production facilities are heavily concentrated in Sichuan and Yunnan provinces. These regions benefit from abundant hydroelectric power, particularly during the "wet season" (typically Q2 and Q3).
* Electricity Cost Savings: During the wet season, electricity tariffs in these provinces are significantly lower than during the dry season. Since electricity constitutes a major portion of polysilicon production costs (approximately 30-40%), this seasonal dip in energy costs provides a natural margin buffer.
* Synergistic Effect: The combination of rising selling prices (due to policy) and falling variable costs (due to seasonality) created a "perfect storm" for margin expansion in 3Q25. This dual benefit explains why the loss narrowing was so pronounced in this specific quarter.

2.2 Cells and Modules: Still Under Pressure, But Hope on the Horizon

While polysilicon is recovering, the downstream segments—solar cells and modules—continue to face headwinds. The transmission of price increases from upstream materials to downstream products has been lagging due to persistent overcapacity in cell and module manufacturing.

A. Price Trends (Data from Infolink)
* TOPCon Cells: By the end of September 2025, the average price for 182210mm TOPCon cells was CNY 0.29/W. This represents a modest 12% increase from the end of June 2025. While positive, this increase is insufficient to fully offset the rising cost of polysilicon inputs for integrated players who do not produce their own silicon, or to generate significant standalone profits for cell makers.
* TOPCon Modules: The average price for TOPCon modules stood at CNY 0.693/W at the end of September, a marginal 2% increase* from June levels. This stagnation indicates that the module segment remains the most competitive bottleneck in the value chain, with manufacturers absorbing higher input costs to maintain market share.

B. Profitability Implications for Tongwei
Tongwei is vertically integrated, producing both polysilicon and cells/modules.
* Internal Transfer Pricing: For Tongwei’s internal module division, the rising cost of self-produced polysilicon acts as a higher input cost. However, since the polysilicon division is now profitable, the consolidated group benefits. The drag on consolidated earnings comes from the external market pricing of modules, which remains weak.
* External Sales: For cells and modules sold to external customers, margins remain thin or negative. The 3Q25 results suggest that the profitability gain from polysilicon outweighed the continued drag from cells/modules, resulting in the overall net loss narrowing.

C. Regulatory Catalyst for Downstream
The outlook for cells and modules is improving due to recent regulatory actions. In October 2025, the National Development and Reform Commission (NDRC) and the State Administration for Market Regulation (SAMR) jointly issued the "Announcement on Governing Disorderly Price Competition and Maintaining Good Market Price Order."
* Policy Intent: This announcement reinforces the government’s commitment to eliminating "race-to-the-bottom" pricing strategies. It signals that the "anti-involution" campaign is expanding beyond polysilicon to cover the entire PV manufacturing chain.
* Expected Outcome: We anticipate that enforcement of these rules will lead to stricter discipline in bidding processes for utility-scale projects and distributed generation. This should allow cell and module manufacturers to pass through cost increases and restore healthy margins. As the largest cell producer globally, Tongwei stands to benefit significantly from any stabilization in module prices.

3. Strategic Positioning and Competitive Moat

3.1 Cost Leadership as a Defensive Shield

In a cyclical downturn, cost leadership is the only sustainable competitive advantage. Tongwei has consistently maintained the lowest all-in production costs in the industry.
* Scale Economies: With a capacity exceeding 1 million tons annually (and expanding), Tongwei benefits from immense economies of scale in procurement, logistics, and overhead allocation.
* Technological Efficiency: The company’s adoption of advanced cold-hydrogenation technologies and continuous process improvements has lowered energy consumption per kilogram of polysilicon produced.
* Location Advantage: As noted, the strategic placement of factories in low-cost hydro-power regions provides a structural cost advantage over competitors located in coal-powered regions or areas with higher industrial electricity rates.

During 3Q25, while competitors were still bleeding cash even at the new higher prices, Tongwei was able to achieve near-breakeven or slight profitability in its silicon segment. This divergence validates our thesis that Tongwei will be the first to return to robust profitability as the cycle turns.

3.2 Technology Transition: N-Type Dominance

The PV industry is rapidly transitioning from P-type (PERC) to N-type (TOPCon and HJT) technologies. Tongwei has aggressively pivoted its capacity towards N-type polysilicon, which commands a premium due to its higher purity requirements and better performance in high-efficiency cells.
* Product Mix: The price data cited (N-type recycled material at CNY 53,200/ton) reflects the premium for high-quality N-type feedstock. Tongwei’s high proportion of N-type capable output ensures it captures this premium.
* Future Proofing: As older P-type capacity becomes stranded assets, Tongwei’s modern, N-type focused fleet positions it well for the next decade of demand growth.

3.3 Vertical Integration and Supply Chain Security

Tongwei’s integration into cells and modules, while currently a drag on margins due to market conditions, provides long-term strategic value.
* Demand Visibility: Owning downstream capacity provides a guaranteed outlet for its polysilicon production, reducing exposure to spot market volatility.
* Feedback Loop: Direct involvement in cell manufacturing allows Tongwei to tailor its polysilicon specifications to meet the exact needs of high-efficiency cell production, creating a technical feedback loop that enhances product quality and customer stickiness.

Risks / Headwinds

While the outlook is improving, institutional investors must remain cognizant of the following risks that could derail the recovery thesis:

1. Downstream Demand Miss

• Global Macro Uncertainty: High interest rates in key markets (US, Europe) continue to dampen the internal rate of return (IRR) for solar projects. If global installation growth falls short of expectations (e.g., below 400 GW globally in 2025/2026), inventory buildup could resume, putting downward pressure on prices despite regulatory efforts.
• Policy Shifts: Changes in subsidy schemes or trade policies in major markets (e.g., US Inflation Reduction Act adjustments, EU carbon border taxes) could alter demand dynamics unexpectedly.

2. Intensified Market Competition

• Capacity Utilization: Despite "anti-involution" policies, if smaller players refuse to exit the market and continue to operate at a loss to maintain cash flow, supply glut could persist. The effectiveness of regulatory price floors depends on strict enforcement and industry compliance.
• New Entrants/Expansions: If competitors accelerate the commissioning of new, low-cost capacity, the supply-demand balance could tilt back towards surplus, capping price upside.

3. Asset Impairment Risks

• Technological Obsolescence: The rapid evolution of PV technology poses a risk of stranded assets. Older P-type polysilicon or cell lines may require significant write-downs if they become economically unviable.
• Inventory Valuation: While prices have risen, any sudden reversal in polysilicon or module prices could trigger further inventory impairment charges, impacting net income. The report notes asset impairment losses of CNY 3.5 billion estimated for 2025, which remains a significant drag on earnings.

4. Trade Barriers and Geopolitics

• Tariffs and Restrictions: The US and EU have historically imposed tariffs on Chinese solar products. Escalation of trade tensions, such as new anti-dumping duties or restrictions on Chinese polysilicon imports, could limit Tongwei’s access to high-margin overseas markets, forcing greater reliance on the fiercely competitive domestic market.

5. Execution and Operational Risks

• Production Disruptions: Any unplanned downtime in its massive polysilicon facilities (due to technical issues or power shortages in the dry season) could disproportionately impact quarterly results given the high fixed-cost nature of the business.
• Debt Management: While cash flow is improving, the company carries significant debt (Total Liabilities ~CNY 143.5 billion in 2025E). Rising interest rates or tightening credit conditions could increase financial expenses, which are projected to remain high (CNY 2.7 billion in 2025E).

Rating / Sector Outlook

Sector Outlook: From "Clearing" to "Consolidation"

The Chinese photovoltaic industry is transitioning from a phase of chaotic "clearing" (where prices fall below cash cost) to a phase of "consolidation" (where prices stabilize above cost, allowing leaders to regain profitability).
* Polysilicon: We view the polysilicon sector as the first to recover. The regulatory floor on prices, combined with the exit of high-cost capacity, creates a favorable environment for leaders like Tongwei. We expect polysilicon prices to remain stable or trend slightly upwards in 4Q25 and 2026, supported by steady demand.
* Cells/Modules: The recovery here will be lagged. We expect margins to remain compressed in 4Q25 but improve gradually in 2026 as the "anti-involution" policies take full effect and excess capacity is rationalized. The NDRC/SAMR announcement is a critical catalyst that accelerates this timeline.

Company Rating: Maintain "Recommend"

We maintain our "Recommend" rating on Tongwei Co., Ltd.
* Rationale: Tongwei is best positioned to capitalize on the industry turnaround due to its unmatched cost structure, scale, and technological leadership. The 3Q25 results confirm that the company can achieve near-breakeven even in a challenging environment, demonstrating operational excellence. As prices normalize, Tongwei’s earnings elasticity is highest among peers.
* Valuation Context: At a current price of CNY 22.93, the stock reflects a pessimistic view of 2025 losses but does not fully price in the robust recovery expected in 2026-2027. The forward P/E of 34x for 2026 may appear elevated compared to historical averages, but it is justified by the inflection point in earnings growth (from loss to profit) and the company’s dominant market position. By 2027, the P/E compresses to an attractive 17x, offering significant upside potential.

Investment View

1. Financial Forecast and Assumptions

Our financial model is built on the following key assumptions:
* Polysilicon Prices: We assume average selling prices (ASPs) for polysilicon stabilize in the CNY 50,000–60,000/ton range in 2026, reflecting a sustainable margin above cash cost but below peak cyclical highs.
* Volume Growth: We project modest volume growth in polysilicon shipments (mid-single digits) as new high-efficiency capacity ramps up, offset by the retirement of older lines. Cell and module shipments are expected to grow in line with global demand (approx. 10-15% YoY).
* Cost Structure: Electricity costs are assumed to normalize after the wet season, but long-term efficiency gains will keep unit costs flat or slightly declining.
* Impairments: We have factored in significant asset impairment losses in 2025 (CNY 3.5 billion) as the company cleans up its balance sheet, with reductions in 2026 (CNY 1.5 billion) and 2027 (CNY 1.3 billion) as the portfolio optimizes.

Projected Financial Performance (2025-2027)

(Source: Minsheng Securities Research Institute Forecasts)

Analysis of Projections:
* 2025: Expected to be the "trough" year. Revenue remains flat YoY as volume growth offsets price declines in H1. The full-year loss narrows compared to 2024 due to the strong 3Q25 and expected 4Q25 performance. Heavy impairments weigh on net income.
* 2026: The "Recovery" year. Revenue jumps 18.3% driven by higher ASPs and volume. Gross margins expand to 13.5% as polysilicon profitability normalizes and module margins improve. The company returns to profitability with a net income of CNY 3.05 billion.
* 2027: The "Growth" year. Revenue grows another 11.8%, and margins expand further to 16.1% as operational efficiencies compound and high-cost competitors exit. Net income nearly doubles to CNY 6.03 billion, driving ROE back to double digits (12.9%).

2. Valuation Analysis

We employ a relative valuation approach using Price-to-Earnings (P/E) and Price-to-Book (P/B) ratios, benchmarked against historical averages and peer groups.

• P/E Multiple: The forward P/E of 34x for 2026 reflects the high growth rate from a loss-making base. For cyclical industries, P/E ratios often appear high at the trough of earnings and low at the peak. Investors should focus on the absolute earnings power and cash flow generation rather than the static multiple. By 2027, the P/E of 17x is more aligned with the long-term average for mature industrial leaders, suggesting fair valuation at that horizon.
• P/B Multiple: The stock trades at a P/B of ~2.4x for 2025/2026. Given Tongwei’s superior ROE trajectory (projected to reach 12.9% in 2027), this P/B multiple is justified. A company generating double-digit ROE typically commands a P/B above 2.0x.
• EV/EBITDA: The Enterprise Value to EBITDA ratio drops from 14.3x in 2025 to 7.6x in 2026 and 6.3x in 2027. This rapid compression highlights the significant operating leverage in the business. An EV/EBITDA of 6-7x is attractive for a market leader with strong cash flows.

3. Investment Strategy and Catalysts

Recommended Strategy:
Institutional investors should consider accumulating positions in Tongwei on any market weakness, viewing the current price as a dislocation caused by transient industry pain rather than structural deterioration. The risk-reward profile is favorable given the limited downside (supported by book value and cash flow) and significant upside (earnings recovery).

Key Catalysts to Monitor:
1. Polysilicon Price Sustainability: Watch monthly pricing data from the Silicon Industry Association. Sustained prices above CNY 50,000/ton are critical for the 2026 profit thesis.
2. Regulatory Enforcement: Details on how the NDRC/SAMR "anti-involution" guidelines are implemented in module bidding processes. Strict enforcement will accelerate margin recovery in downstream segments.
3. Quarterly Cash Flow: Continued positive operating cash flow in 4Q25 and 1Q26 will validate the quality of earnings and reduce balance sheet risks.
4. Capacity Rationalization: Announcements of capacity closures or delays by competitors (especially smaller, high-cost producers) will signal a tightening supply-demand balance, benefiting Tongwei.
5. Technological Breakthroughs: Progress in Tongwei’s R&D regarding next-generation cell technologies (e.g., HJT, Perovskite tandem) could provide additional valuation premiums.

4. Conclusion

Tongwei Co., Ltd. stands at the forefront of the photovoltaic industry’s cyclical recovery. The 3Q25 earnings report serves as concrete evidence that the company’s cost leadership and strategic positioning allow it to weather the storm better than peers and emerge stronger. The convergence of regulatory support ("anti-involution") and seasonal cost benefits has triggered a significant improvement in polysilicon profitability, which is the key driver of the company’s financial health.

While challenges remain in the downstream cell and module sectors, the regulatory tide is turning, and price repairs are imminent. With a projected return to robust profitability in 2026 and strong cash flow generation, Tongwei offers a compelling investment opportunity for institutions seeking exposure to the green energy transition with a focus on quality, scale, and resilience. We maintain our Recommend rating with a target price of CNY 22.93, implying significant upside potential as the market re-rates the stock from "distressed" to "recovery" status.

Appendix: Detailed Financial Data & Metrics

A. Income Statement Summary (CNY Million)

B. Balance Sheet Highlights (CNY Million)

C. Cash Flow Statement Summary (CNY Million)

D. Key Financial Ratios & Per Share Data

Analyst Certification & Disclaimer

Analyst Certification:
The analysts named in this report, Deng Yongkang, Zhu Biye, Wang Yiru, and Lin Yutao, certify that they hold the necessary securities investment consulting qualifications registered with the Securities Association of China. They declare that the views expressed in this report accurately reflect their personal, independent, and objective research opinions. They have not received, nor will they receive, any direct or indirect compensation for the specific recommendations or views contained herein.

Disclaimer:
Minsheng Securities Co., Ltd. ("the Company") holds the qualification for securities investment consulting business approved by the China Securities Regulatory Commission. This report is intended solely for the use of the Company's domestic clients. Receipt of this report does not constitute a client relationship. This report is for reference only and does not constitute an offer or solicitation to buy or sell any securities or financial instruments. The views and suggestions contained herein do not consider the specific investment objectives, financial situation, or particular needs of any recipient. Clients should independently evaluate the information and consult with legal, tax, and financial advisors as necessary. The Company assumes no liability for any losses arising from the use of this report.

The information contained in this report is based on publicly available sources believed to be reliable, but the Company makes no representation or warranty as to its accuracy or completeness. The opinions and forecasts reflect the judgment of the analysts as of the date of publication and are subject to change without notice. The Company may hold positions in the securities mentioned and may provide investment banking or other services to the companies discussed. Conflicts of interest may exist; clients should consider this report as only one factor in making their investment decision.

Copyright:
This report is the exclusive property of Minsheng Securities Co., Ltd. No part of this report may be reproduced, distributed, or published in any form or by any means without prior written permission. All trademarks and service marks mentioned are the property of the Company unless otherwise stated.

Contact Information:
* Shanghai: 7th Floor, Star Cube Building, No. 188 Yangshupu Road, Hongkou District, Shanghai, 200082
* Beijing: 18th Floor, Block A, Minsheng Financial Center, No. 28 Jianguomen Inner Street, Dongcheng District, Beijing, 100005
* Shenzhen: Room 01, 10th Floor, Tower 1, Kerry Construction Plaza, No. 1 Zhongxin 4th Road, Futian District, Shenzhen, 518048