Aote Wei (688516.SH): Strategic Expansion into Solid-State Battery Equipment and Semiconductor Inspection; Maintaining "Buy" Rating

Date: September 28, 2025
Analyst: Zhou Ershuang, Li Wenyi | Dongwu Securities Research Institute
Rating: Buy (Maintained)
Current Price: CNY 50.48
Target Valuation Context: P/E (2025E): ~21.8x | P/E (2026E): ~26.2x

Executive Summary

Aote Wei (688516.SH), a leading provider of photovoltaic (PV) and lithium-ion battery manufacturing equipment, is executing a decisive strategic pivot towards high-growth adjacent sectors: solid-state battery (SSB) manufacturing equipment and semiconductor optical inspection. While the company faces near-term headwinds in its core PV segment due to industry-wide capacity consolidation and cyclical downturns, its diversification strategy is beginning to yield tangible results. This report analyzes three critical developments that underpin our maintained "Buy" rating:

1. Breakthrough in Solid-State Battery Materials Equipment: The company’s subsidiary, Songci Mechanical & Electrical, has successfully launched a Chemical Vapor Deposition (CVD) fluidized bed equipment specifically designed for silicon-carbon anode production. This technology addresses the critical material bottleneck in all-solid-state battery commercialization, offering superior uniformity, process control, and safety features powered by AI and big data analytics.
2. Strategic Partnership with Yili Technology: In late 2024, Aote Wei entered into a strategic cooperation agreement with Yili Technology, a pioneer in sulfide-based all-solid-state batteries. With Yili planning a CNY 6.7 billion investment to build a 26GWh mass production base over the next five years, Aote Wei is positioned as a key beneficiary in the upstream equipment supply chain for next-generation battery technologies.
3. Penetration into Global Semiconductor Supply Chains: The company has secured orders from a renowned US optical communications firm for its Automated Optical Inspection (AOI) equipment used in semiconductor die-attach and bonding processes. With a total addressable market (TAM) estimated at CNY 4 billion by 2030 for this specific niche, this move validates Aote Wei’s platform-based expansion capabilities beyond the energy sector.

Despite projected declines in revenue and net profit for 2025-2026 due to the delayed recognition of previous PV orders and intensified competition, we maintain our earnings forecasts of CNY 729 million, CNY 607 million, and CNY 644 million for 2025, 2026, and 2027, respectively. The current valuation, trading at approximately 22x forward P/E for 2025, offers an attractive entry point for long-term investors seeking exposure to the structural growth of solid-state batteries and semiconductor localization, balanced against the cash-flow stability of its legacy businesses.

Key Takeaways

1. Technological Moat in Solid-State Battery Anode Processing

The transition from liquid-electrolyte lithium-ion batteries to all-solid-state batteries (ASSBs) represents the most significant technological shift in the energy storage sector this decade. A primary hurdle in this transition is the anode material system. Traditional graphite anodes lack the energy density required to fully leverage the advantages of solid electrolytes. Consequently, silicon-carbon (Si-C) composite anodes have emerged as the preferred solution due to their high theoretical specific capacity (up to 10 times that of graphite) and improved cycling stability when properly engineered.

However, the manufacturing of high-performance Si-C anodes requires precise coating and deposition techniques to mitigate the volume expansion issues inherent to silicon during charge/discharge cycles. This is where Aote Wei’s subsidiary, Songci Mechanical & Electrical, has established a competitive edge.

The CVD Fluidized Bed Solution

Songci has developed a specialized CVD (Chemical Vapor Deposition) Fluidized Bed Equipment tailored for the silane deposition and carbon coating of porous carbon powder materials. This equipment is not merely an iteration of existing tools but a targeted solution for the unique requirements of SSB anode production.

Key Technical Advantages:

• Superior Uniformity: The fluidized bed design ensures that powder particles are suspended in a gas stream, allowing for uniform exposure to the precursor gases (silane). This results in a highly consistent silicon deposition and carbon coating layer across all particles, which is critical for maintaining electrode integrity and preventing localized stress fractures.
• Precise Process Control: The equipment offers enhanced controllability over temperature and concentration gradients within the reaction chamber. Precise thermal management is vital in CVD processes to prevent unwanted side reactions and ensure the quality of the deposited film.
• AI-Driven Optimization: Integrating big data statistics and Artificial Intelligence (AI) control systems, the equipment can dynamically adjust process parameters in real-time. This reduces defect rates, improves yield, and allows for faster ramp-up of new production lines.
• Enhanced Safety: Handling silane gas poses significant safety risks due to its pyrophoric nature. Songci’s design incorporates advanced safety protocols and containment systems, addressing a major concern for battery manufacturers scaling up Si-C anode production.

This technological capability positions Aote Wei not just as a mechanical equipment supplier, but as a process-enabling partner for battery makers navigating the complex material science challenges of solid-state batteries.

2. Strategic Alliance with Yili Technology: Capturing the Sulfide SSB Wave

While technology development is crucial, commercial validation through partnerships with leading industry players is the ultimate driver of revenue growth. Aote Wei’s strategic cooperation with Yili Technology marks a significant milestone in its solid-state battery equipment journey.

Partner Profile: Yili Technology

Yili Technology is a specialized entity focused on the research, development, and production of sulfide-based all-solid-state batteries. Sulfide electrolytes are widely regarded as one of the most promising pathways for ASSBs due to their high ionic conductivity (comparable to liquid electrolytes) and good mechanical contact with electrode materials.

• Customer Base: Yili has already supplied sulfide solid electrolytes to tier-1 industry leaders, including CATL (Contemporary Amperex Technology Co. Limited), CALB (China Aviation Lithium Battery), and the Ouyang Minggao Academician Workstation. This endorsement from top-tier clients validates the quality and potential of Yili’s technology.
• Capacity Expansion Plans: Yili has announced an ambitious capital expenditure plan. Over the next five years, it intends to invest CNY 6.7 billion to construct a mass production base for all-solid-state batteries. Upon completion and full ramp-up, this facility is expected to achieve an annual production capacity of 26 GWh.

Implications for Aote Wei

The partnership implies that Aote Wei’s equipment, particularly the CVD fluidized bed systems and potentially other backend assembly lines, will be integrated into Yili’s production workflow. Given the scale of Yili’s planned investment, even a modest share of the equipment procurement budget translates into significant revenue potential for Aote Wei.

Furthermore, this partnership serves as a powerful reference case. Success in supplying Yili can open doors to other battery manufacturers who are currently evaluating or initiating their own SSB pilot lines. As the industry moves from R&D to pilot and then to mass production (expected to accelerate post-2027), early movers like Aote Wei stand to capture a disproportionate share of the initial equipment market.

3. Semiconductor AOI Equipment: Breaking into High-Precision Markets

Diversification away from the volatile PV and Lithium sectors is a core component of Aote Wei’s long-term strategy. The company’s foray into semiconductor equipment, specifically Automated Optical Inspection (AOI) for optical modules, demonstrates its ability to transfer its precision manufacturing and vision algorithm expertise to higher-margin, high-barrier industries.

Order Win and Technical Specifications

In February 2025, Aote Wei signed an order with a well-known US optical communications company to supply semiconductor die-attach/bonding optical inspection machines. The collaboration extends to the client’s subsidiaries, with the equipment slated for deployment across three production lines in China and the United States. This cross-border deployment underscores the global competitiveness of Aote Wei’s technology.

The equipment is designed for use in both optical communication module manufacturing and traditional semiconductor packaging lines. Its value proposition rests on three pillars:

1. High Throughput: The single-machine output exceeds current industry demands, effectively enhancing the overall capacity utilization of customer production lines. In high-volume manufacturing environments, throughput is a key determinant of cost-efficiency.
2. Ultra-High Precision: The system achieves a detection accuracy of $1 \mu m$. This level of precision is essential for identifying microscopic defects in advanced optical modules, where misalignments or tiny particulate contaminants can lead to signal loss or device failure.
3. Full Compatibility: The equipment supports the detection of mainstream optical modules ranging from 100G to 800G. As data centers upgrade to support AI and high-performance computing workloads, the demand for 400G and 800G modules is surging. Aote Wei’s ability to handle this range ensures its equipment remains relevant through multiple technology generations.

Market Size Estimation and Growth Potential

To quantify the opportunity, we model the Total Addressable Market (TAM) for this specific AOI equipment segment:

• Demand Assumption: By 2030, the global demand for optical modules is projected to reach 80 million units.
• Equipment Capacity: One AOI inspection machine has an annual processing capacity of approximately 40,000 units.
• Equipment Volume Required: $\frac{80,000,000 \text{ units}}{40,000 \text{ units/machine}} = 2,000 \text{ machines}$.
• Unit Price: Estimated at CNY 2 million per machine.
• Total Market Space: $2,000 \text{ machines} \times \text{CNY } 2 \text{ million} = \text{CNY } 4 \text{ billion}$.

This CNY 4 billion TAM represents a substantial new revenue stream for Aote Wei. While the company is currently in the early stages of penetration, securing orders from a major US player provides a strong foothold. As domestic substitution trends continue in China’s semiconductor sector, and as global demand for AI-driven data center infrastructure grows, this business line could become a significant contributor to gross profits, given the typically higher margins associated with semiconductor equipment compared to PV machinery.

4. Financial Performance and Outlook: Navigating the Cyclical Trough

While the strategic narratives around SSB and semiconductors are compelling, it is imperative to contextualize them within the company’s current financial reality. Aote Wei is currently navigating a challenging period driven by the cyclicality of its core PV business.

Revenue and Profit Trends

The following table summarizes the historical and projected financial performance:

Source: Company Reports, Dongwu Securities Estimates

Analysis of the Downturn (2025-2026):
The projected decline in revenue and net profit for 2025 and 2026 is primarily attributable to the PV industry cycle.
1. Order Recognition Lag: Revenue in equipment manufacturing is recognized upon acceptance/delivery. The slowdown in downstream PV cell and module manufacturer capex in 2024-2025 means fewer new orders are being booked and delivered in the immediate term.
2. Price Pressure: Intense competition in the PV sector has led to margin compression. While Aote Wei maintains a leading market share, pricing power has diminished temporarily.
3. Base Effect: The high revenue base in 2024 (CNY 9.2 billion) makes year-over-year comparisons challenging as the market corrects.

Signs of Stabilization (2027):
Our forecast indicates a return to growth in 2027, with revenue increasing by 4.6% and net profit by 6.13%. This stabilization is predicated on:
* The gradual recovery of the PV industry as excess capacity is cleared.
* The contribution of new business lines (SSB equipment and Semiconductor AOI) reaching meaningful scale.
* Continued expansion in overseas markets, which typically offer better margins than the domestic Chinese market.

Balance Sheet and Cash Flow Health

Despite the profit dip, Aote Wei’s balance sheet remains robust, providing the liquidity needed to fund R&D and navigate the downturn.

• Cash Position: Monetary funds and transactional financial assets are projected to grow from CNY 2.49 billion in 2024 to CNY 4.78 billion by 2027. This strong cash reserve mitigates liquidity risks and allows for strategic investments without excessive leverage.
• Debt Structure: The asset-liability ratio is expected to improve, declining from 70.58% in 2024 to 58.24% in 2027. Short-term borrowings are projected to decrease significantly, reducing interest expense pressure.
• Operating Cash Flow: Operating cash flow is forecasted to remain positive and strong, exceeding CNY 1.2 billion annually from 2025 to 2027. This indicates that despite lower accounting profits, the company’s core operations continue to generate healthy cash, supported by efficient working capital management.

Profitability Metrics

• Gross Margin: Expected to stabilize around 28.3% - 28.6% from 2025 to 2027, down from 32.9% in 2024. This reflects the mix shift and competitive pricing but suggests a floor has been reached.
• Net Margin: Attributable net margin is projected to hover around 10%, down from 13.8% in 2024. This compression is consistent with the revenue decline and fixed cost absorption challenges.
• ROE (Return on Equity): Diluted ROE is expected to moderate from 31.25% in 2024 to ~10.6-11.2% in 2026-2027. While lower, these levels remain respectable for a manufacturing firm in a cyclical trough.

Risks / Headwinds

Investors must consider several key risks that could impact Aote Wei’s financial performance and strategic execution.

1. Downstream Capacity Expansion Misses Expectations

The primary risk stems from the capital expenditure plans of Aote Wei’s customers in the PV and Lithium sectors.
* PV Sector: If the consolidation of the PV industry takes longer than anticipated, or if profitability for cell/module makers remains negative for an extended period, capex cuts could deepen. This would lead to further delays in order placements and potential cancellations, exacerbating the revenue decline in 2025-2026.
* Lithium Sector: While EV demand remains robust, growth rates have normalized. Any significant slowdown in EV adoption or energy storage installations could reduce demand for traditional lithium battery equipment, offsetting gains from the SSB segment.

2. R&D and Commercialization Delays in Solid-State Batteries

Solid-state battery technology is still in the early stages of industrialization.
* Technical Hurdles: Issues related to interface stability, ionic conductivity, and manufacturing scalability may persist longer than expected. If the industry timeline for mass production of ASSBs shifts from the late 2020s to the 2030s, the revenue contribution from SSB equipment will be delayed.
* Technology Path Uncertainty: There are multiple competing electrolyte technologies (sulfide, oxide, polymer). If the industry converges on a path that does not require Aote Wei’s specific CVD fluidized bed technology, or if alternative manufacturing methods emerge, the company’s R&D investments may not yield the expected returns.

3. Semiconductor Equipment Market Entry Barriers

While the AOI order win is significant, the semiconductor equipment market is characterized by high barriers to entry and entrenched incumbents (e.g., KLA, Applied Materials).
* Validation Cycle: Qualification processes for semiconductor equipment are lengthy and rigorous. Failure to meet yield or reliability targets in subsequent batches could result in loss of future orders.
* Geopolitical Risks: As Aote Wei expands into the US market, it faces potential geopolitical headwinds, including export controls or trade restrictions that could limit its ability to serve certain customers or source components.

4. Margin Compression and Competition

• Price Wars: In both the PV and Lithium equipment sectors, competition is fierce. Competitors may engage in aggressive pricing to secure market share, further compressing Aote Wei’s gross margins.
• Cost Inflation: Increases in raw material costs or labor expenses could outpace the company’s ability to pass these costs onto customers, particularly in fixed-price contracts.

5. Financial and Accounting Risks

• Impairment Losses: The company has recorded significant impairment losses in the past (CNY 622 million in 2024). If inventory values decline further due to technological obsolescence or price drops, additional impairments could negatively impact net profit.
• Receivables Collection: With a large portion of assets tied up in operational receivables (CNY 3.69 billion in 2024), any deterioration in customer creditworthiness could lead to bad debt provisions and cash flow strain.

Rating / Sector Outlook

Investment Rating: Buy (Maintained)

We maintain our "Buy" rating for Aote Wei (688516.SH). This rating reflects our confidence in the company’s long-term strategic positioning and its ability to navigate the current cyclical downturn.

Rationale for Rating:
1. Valuation Support: At a current P/E of ~12.5x (based on 2024 actuals) and ~21.8x (based on 2025 estimates), the stock is priced for perfection in terms of near-term pain but offers limited downside given its strong balance sheet and cash flow generation. The market has largely priced in the PV downturn.
2. Optionality Value: The investments in SSB and Semiconductor equipment provide valuable call options on high-growth themes. As these sectors mature, they will re-rate the company’s multiple from a pure-play PV equipment vendor to a diversified high-tech platform.
3. Market Leadership: Aote Wei remains a dominant player in its core segments. Its scale, R&D capabilities, and customer relationships provide a defensive moat that smaller competitors lack.

Sector Outlook

Photovoltaic Equipment: Consolidation Phase

The PV equipment sector is in a phase of intense consolidation. We expect demand to remain weak in 2025-2026 as the industry works through excess capacity. However, we anticipate a gradual recovery in 2027 driven by:
* Technological iterations (e.g., BC, HJT, Perovskite tandem cells) requiring new equipment upgrades.
* Global energy transition goals sustaining long-term demand.
* Exit of inefficient capacity, restoring pricing power for surviving equipment makers.

Lithium Battery Equipment: Transition to Next-Gen

The traditional lithium battery equipment market is maturing. Growth will increasingly come from:
* Overseas Expansion: Chinese battery makers building factories in Europe, North America, and Southeast Asia.
* Technology Upgrades: Shift towards 4680 cylindrical cells, large prismatic cells, and eventually solid-state batteries.
* Energy Storage Systems (ESS): Rapid growth in utility-scale and residential storage providing a secondary demand engine.

Semiconductor Equipment: Localization and Specialization

The semiconductor equipment sector in China is benefiting from strong policy support and a drive for self-sufficiency. Niche players like Aote Wei, focusing on specific inspection and assembly tasks, are well-positioned to capture market share from foreign incumbents, especially in non-critical but high-volume segments like optical module packaging.

Investment View

Core Investment Logic

Aote Wei represents a compelling investment case for institutional investors seeking a blend of cyclical recovery potential and structural growth exposure. The investment thesis rests on three pillars:

1. Platform-Based Diversification De-risks the Business Model

Historically, Aote Wei was viewed as a proxy for the PV cycle. Today, it is evolving into a multi-platform equipment provider. The successful entry into the semiconductor AOI market and the solid-state battery equipment space demonstrates management’s ability to leverage core competencies (precision mechanics, vision algorithms, automation) across different industries. This diversification reduces reliance on any single sector, smoothing out earnings volatility over the long term.

2. Early Mover Advantage in Solid-State Battery Supply Chain

The partnership with Yili Technology and the launch of the CVD fluidized bed equipment place Aote Wei at the forefront of the SSB equipment supply chain. As the industry transitions from lab-scale to pilot and mass production, early suppliers often establish sticky relationships and set technical standards. Aote Wei’s focus on the anode processing step—a critical bottleneck—gives it a unique value proposition. Investors should view this not just as incremental revenue, but as a strategic foothold in the next generation of energy storage.

3. Undervalued Relative to Long-Term Growth Trajectory

The current market pricing reflects the near-term earnings depression caused by the PV cycle. However, it fails to fully account for:
* The high-margin potential of the semiconductor AOI business (CNY 4 billion TAM).
* The explosive growth potential of the SSB equipment market as it scales post-2027.
* The strong cash flow generation that supports dividends and buybacks, or reinvestment into R&D.

As the PV cycle bottoms out and new businesses begin to contribute meaningfully to earnings, we expect a multiple expansion. The shift from a cyclical hardware vendor to a technology-enabled platform provider warrants a higher valuation premium.

Strategic Recommendations for Investors

• Accumulate on Weakness: Given the projected earnings dip in 2025-2026, short-term volatility is likely. Investors should use periods of weakness to accumulate positions, focusing on the long-term structural story rather than quarterly noise.
• Monitor Key Catalysts:
  • SSB Milestones: Track Yili Technology’s progress in building its 26GWh facility and any subsequent orders placed with Aote Wei.
  • Semiconductor Orders: Watch for additional AOI order wins, particularly from other major optical communication or semiconductor packaging firms.
  • PV Industry Signals: Monitor signs of capacity clearance and price stabilization in the PV module market, which would signal the end of the downturn.
• Risk Management: Investors should remain mindful of the execution risks in new sectors. While the technology is promising, commercial scaling is never guaranteed. Diversification within the portfolio is recommended to mitigate sector-specific shocks.

Conclusion

Aote Wei is at a pivotal juncture. While the headwinds from the PV sector are real and impactful in the short term, the company’s proactive diversification into solid-state batteries and semiconductor inspection provides a clear path to renewed growth. The strategic partnership with Yili Technology and the breakthrough in CVD fluidized bed technology are not merely incremental developments; they are transformative steps that position Aote Wei as a key enabler of the next energy revolution.

We believe the market is underestimating the long-term value of these new ventures and overemphasizing the transient nature of the PV cycle. With a robust balance sheet, strong cash flows, and a proven track record of innovation, Aote Wei is well-equipped to weather the storm and emerge stronger. Therefore, we maintain our Buy rating, targeting a re-rating of the stock as the new business lines gain traction and the core PV business stabilizes.

Appendix: Detailed Financial Analysis

Income Statement Drivers

Balance Sheet Strengths

• Liquidity: The company holds substantial cash reserves (CNY 2.7B+ in 2025E), providing a buffer against operational downturns.
• Inventory Management: Inventory levels are projected to decrease from CNY 6.26B in 2025 to CNY 5.06B in 2027, indicating improved turnover and reduced risk of obsolescence.
• Debt Reduction: Long-term debt remains stable, while short-term borrowings are aggressively reduced, improving the net debt-to-equity profile.

Cash Flow Sustainability

• Operating Cash Flow (OCF): Projected OCF of CNY 1.2B+ annually ensures the company can fund its operations and R&D without relying on external financing.
• Capital Expenditure (CapEx): CapEx is moderated (CNY 129M in 2025/26), reflecting a cautious approach to expansion during the downturn. This discipline preserves cash for strategic opportunities.

Valuation Sensitivity

Our valuation is based on a P/E multiple approach.
* Base Case: 2025E EPS of CNY 2.31 at 22x P/E implies a fair value context consistent with current trading levels, suggesting the downside is limited.
* Bull Case: If SSB orders accelerate or semiconductor margins exceed expectations, earnings could beat forecasts, leading to multiple expansion towards 25-30x.
* Bear Case: If the PV downturn deepens or SSB commercialization is delayed, earnings could fall below estimates, compressing the multiple to 15-18x. However, the strong cash position limits the downside risk.

Disclaimer and Regulatory Information

This report is issued by Dongwu Securities Research Institute. It is intended solely for the use of professional institutional investors. The information contained herein is based on sources believed to be reliable, but Dongwu Securities does not guarantee its accuracy or completeness. The opinions expressed are subject to change without notice.

Investment Rating Definitions:
* Buy: Expected return > 15% relative to benchmark over 6-12 months.
* Outperform: Expected return between 5% and 15%.
* Neutral: Expected return between -5% and 5%.
* Underperform: Expected return between -15% and -5%.
* Sell: Expected return < -15%.

Risk Warning: Stock market investments carry risks. Investors should make independent decisions based on their own risk tolerance and financial situation. Past performance is not indicative of future results.

Contact Information:
* Zhou Ershuang: zhouersh@dwzq.com.cn | +86-21-60199784
* Li Wenyi: liwenyi@dwzq.com.cn
* Address: No. 5 Xingyang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China.

(End of Report)