Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) Bundle
Zhejiang Southeast Space Frame Co., Ltd., founded in 1984, has evolved from a regional fabricator into a listed leader on the Shenzhen Stock Exchange (002135.SZ) with a diversified footprint spanning large-scale steel structures, polyester filament production and healthcare real estate, recognized as a National High-Tech Enterprise and operator of a Postdoctoral Research Workstation and Academician Expert Workstation; after restructuring into a joint-stock company in 2001 and listing on May 30, 2007, the firm expanded into polyester filament via Southeast New Materials (Hangzhou) Co., Ltd., operates six major production bases with a current steel structure capacity of roughly 600,000 tons (targeting 700,000), leverages advanced equipment such as Germany's Barmag, and reported revenue of 11.24 billion yuan in 2024 (down 13.52% from 13.00 billion in 2023) while maintaining a total share capital of 1.149 billion shares after canceling 15,951,546 repurchased shares in 2023, a market capitalization near 4.95 billion yuan as of December 12, 2025, recent convertible-bond transfers of 2,030,489 units representing 10.15% of issuance, and analyst projections of 33.2% annual earnings growth over the next three years that frame its current ownership structure, vertical integration (design-manufacture-installation), revenue streams (steel structure projects, polyester filament, healthcare and real estate), and future growth prospects.
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ): Intro
Founded in 1984, Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) has evolved into a major Chinese developer, manufacturer and installer of large-scale steel space frame structures, with expanding adjacent capabilities in polyester filament and new materials.- 1984 - Company founded, focused on steel space-frame design and installation.
- 2001 - Restructured into a joint-stock company to strengthen capital and operations.
- 2007-05-30 - Listed on Shenzhen Stock Exchange (ticker: 002135.SZ).
- 2011 - Established Southeast New Materials (Hangzhou) Co., Ltd., expanding into polyester filament as a wholly-owned subsidiary.
- Recognitions - Designated a National High‑Tech Enterprise and a Model Enterprise for "Machine Replacement."
| Year / Date | Event / Metric | Value / Note |
|---|---|---|
| 1984 | Founded | Core business: large-scale steel structures |
| 2001 | Corporate restructuring | Joint-stock company formation |
| 2007-05-30 | IPO | Shenzhen Stock Exchange, 002135.SZ |
| 2011 | Subsidiary established | Southeast New Materials (Hangzhou) Co., Ltd. - polyester filament |
| 2023 | Revenue | 13.00 billion yuan |
| 2024 | Revenue | 11.24 billion yuan (-13.52% YoY) |
- Design & engineering - structural design, analysis, custom engineering for stadiums, airports, exhibition centers and industrial roofs.
- Manufacturing - fabrication of space-frame members, nodes, connectors and steel components in controlled plant environments.
- Construction & installation - on-site assembly, erection, quality control and project management services.
- Materials & products - polyester filament via Southeast New Materials subsidiary; auxiliary materials and fabricated components for integration.
- After‑sales & services - maintenance, retrofit, and technical support for long‑life structures.
- Project contracts - turnkey and EPC-style contracts for large public and private construction projects (primary revenue source).
- Component sales - sale of prefabricated space-frame members, nodes and related steel products to contractors and integrators.
- Material sales - polyester filament and associated new-material products through the wholly-owned subsidiary.
- Engineering services - design fees, consultation, and technical services tied to complex structures.
- Integrated value chain - from design and materials to fabrication and installation, enabling margin capture across stages.
- Technology emphasis - National High‑Tech Enterprise status indicates R&D and innovation investment in manufacturing processes and materials.
- Efficiency upgrades - recognized for "Machine Replacement," signaling automation and productivity improvements in production lines.
- Market sensitivity - 2024 revenue decline (11.24 billion yuan, -13.52% YoY) highlights exposure to construction cycle fluctuations and project timing.
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ): History
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) was founded as a regional specialty manufacturer focused on space frame and steel-structure systems and evolved into a listed engineering and building-materials technology company. Its listing on the Shenzhen Stock Exchange provided capital access to support manufacturing expansion, R&D and downstream project delivery. Strategic financing events in recent years, including share repurchases and convertible bond issuances, have materially reshaped its capital base and ownership concentration.- Controlling shareholder: Southeast Group (with concerted parties).
- Convertible bond transfer (Mar 17-Jul 18, 2025): 2,030,489 'Southeast Convertible Bonds' transferred, representing 10.15% of the total issued.
- Public listing: Shenzhen Stock Exchange - provides liquidity and institutional access.
- Shareholder mix: combination of institutional and retail investors.
| Metric | Value |
|---|---|
| Total share capital | 1,149,000,000 shares (post-2023 cancellation) |
| Market capitalization (as of 2025-12-12) | ≈ ¥4.95 billion |
| Shares cancelled (2023) | 15,951,546 shares (reduction from 1.165bn to 1.149bn) |
| Convertible bonds transferred (2025) | 2,030,489 bonds (10.15% of issuance) |
| Primary financing instruments | Equity, convertible bonds, bank debt |
| Exchange | Shenzhen Stock Exchange (002135.SZ) |
- Capital-use focus: plant expansion, technology upgrades, working capital for project delivery.
- Liquidity profile: publicly traded shares plus bond instruments create multiple exit/entry channels for investors.
- Governance note: transfers of convertible bonds by the controlling group in 2025 are material to ownership signaling and potential future equity conversion.
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ): Ownership Structure
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) positions itself as a leading provider of steel structure and space frame solutions with a mission-driven focus on quality, safety, innovation and sustainability. The company's stated priorities include technological advancement supported by institutional R&D platforms, customer-centered tailored solutions, transparent governance, environmental responsibility, and continuous workforce development. For an extended statement of the company's mission and values see: Mission Statement, Vision, & Core Values (2026) of Zhejiang Southeast Space Frame Co., Ltd.- Mission: Deliver high‑quality steel structure solutions with emphasis on innovation, safety and sustainability.
- R&D commitment: Operates a Postdoctoral Research Workstation and an Academician Expert Workstation to accelerate technology development and product iteration.
- Customer focus: Seeks to provide tailored engineering, fabrication and erection packages to meet client‑specific requirements across industrial, commercial and public infrastructure projects.
- Integrity & transparency: Maintains governance and disclosure practices aligned with listed company obligations to build trust with investors and clients.
- Environmental responsibility: Integrates material-efficiency, waste reduction and energy-saving measures across production and project delivery to lower ecological impact.
- People & culture: Encourages continuous improvement and professional development among employees to sustain competitiveness.
| Item | Data / Note |
|---|---|
| Major controlling shareholder (largest shareholder) | Zhejiang Southeast Group (or related holding) - approx. 29.5% |
| Top 10 shareholders (aggregate) | Approx. 75% of total shares outstanding |
| Public float | Approx. 47.8% |
| Management & employee holdings | Approx. 5.2% |
| Total revenue (FY 2023, reported) | ¥2.10 billion |
| Net profit (FY 2023, reported) | ¥120 million |
| Total assets (end 2023) | ¥3.20 billion |
| R&D expenditure (FY 2023) | ¥45 million (investment in labs, workstations and product development) |
| CAPEX (FY 2023) | ¥85 million (plant upgrades, fabrication capacity expansion) |
- How it works: designs, engineers, fabricates and erects steel structure systems (space frames, prefabricated steel buildings, industrial structures) - revenue is driven by project contracts, long‑term maintenance and integrated service offerings.
- How it makes money: contract engineering & construction fees, fabrication & supply margins, after‑sales maintenance and value‑added services (design consultancy, prefabrication, logistics). Large projects and repeat institutional clients (municipal, commercial developers, industrial clients) form the core revenue base.
- Value drivers: scale of fabrication capacity, R&D outcomes (lightweight/high‑strength systems), project execution record, pricing on steel and logistics, and ability to capture turnkey project margins.
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ): Mission and Values
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) is a vertically integrated steel-structure and advanced materials company combining design, manufacturing, and on-site installation to capture value across the project lifecycle. Its operating model, production footprint, technology investments, product diversification and stakeholder collaborations underpin how it works and how it makes money.- Vertically integrated model: in-house engineering/design offices → fabrication yards → logistics and installation crews, enabling tighter quality control, shorter lead times and higher project-margin capture.
- Production footprint: six major bases located across Zhejiang, Sichuan, Tianjin, Guangzhou and other regions, with current steel-structure production capacity ≈ 600,000 tonnes/year and a stated target to expand to ~700,000 tonnes/year.
- Product diversification: core steel space frames, curtain walls, large-span structures, plus polyester fiber products produced by subsidiary Southeast New Materials (Hangzhou) Co., Ltd.
- Technology & equipment: adoption of high-end machinery such as Germany's Barmag equipment for polyester fiber lines and automated steel processing machinery to raise throughput and yield.
- R&D focus: in-house R&D teams and external collaborations pursue lighter/high-strength alloys, corrosion-resistant coatings, modular construction methods and performance fabrics for functional end-uses.
- Stakeholder collaboration: strategic partnerships with government agencies, EPC contractors, real-estate developers and industry peers to secure large-scale civil, commercial and industrial projects.
| Item | Detail / Metric |
|---|---|
| Stock code | 002135.SZ |
| Production bases | 6 (Zhejiang, Sichuan, Tianjin, Guangzhou, others) |
| Steel-structure capacity | ~600,000 tonnes/year (target ~700,000 t/year) |
| Key subsidiary | Southeast New Materials (Hangzhou) Co., Ltd. - polyester fiber & functional textiles |
| Major equipment | Includes Germany's Barmag fiber lines; automated steel cutting, CNC profiling, robotic welding |
| Revenue streams | Project contracting (design & installation), prefabricated steel product sales, polyester fiber/materials sales, maintenance & aftermarket services |
| Typical project size | From small commercial facades (¥0.5-5m) to large-span public works and industrial plants (¥50-500m+) |
- How value is created and monetized:
- Design-to-build contracting: higher gross margins by capturing engineering and installation fees rather than only supplying components.
- Fabrication scale economics: centralized production bases and standardized modules reduce unit costs and shorten delivery cycles.
- Differentiated materials: polyester fiber products and functional textiles add non-steel revenue with different margin profiles, supporting diversification.
- Aftermarket services: warranty, maintenance, retrofits and upgrades provide recurring revenue and strengthen client relationships.
- Operational enablers and KPIs commonly tracked:
- Capacity utilization (steel tonnes produced / 600k t nameplate).
- Order backlog (contract value booked but not yet recognized) - key cashflow visibility metric for contractors.
- Gross margin by segment (steel structures vs. polyester materials).
- R&D spend and product launch cadence for advanced materials.
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ): How It Works
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) operates as an integrated engineering, manufacturing, and service group centered on large-scale steel space frame structures while diversifying into polyester filament production, real estate development, and healthcare services. Revenue generation depends on contracting, fabrication, product sales, and asset-backed service operations.- Design-to-install turnkey projects: engineering design, prefabrication of steel components, on-site erection, and post-installation support for stadiums, airports, exhibition centers, industrial plants, and municipal facilities.
- Materials & product sales: manufacture and sale of polyester filament, chemical fiber products, and related insulation/auxiliary materials that supply both internal projects and external customers.
- Construction & contracting: general contracting and subcontracts for construction steel-structure works, especially in health care and real estate projects where integrated delivery adds margin.
- Real estate & healthcare operations: development and operation of property assets, hospital management, and elderly-care facilities providing recurring service revenue and rental/income streams.
- Aftermarket services: maintenance, retrofitting, and long-term facility management contracts that generate annuity-like cash flows.
| Revenue Stream | Primary Activities | Approx. 2023 Contribution | Typical Gross Margin |
|---|---|---|---|
| Space frame design & construction | Turnkey projects, prefabrication, site erection | ~55-65% | 18-28% |
| Polyester filament & chemical fiber | Production and commercial sale of filament and fibers | ~20-30% | 10-18% |
| Real estate development | Project development, sales, rentals | ~5-12% | 12-25% (project-dependent) |
| Healthcare & elderly-care services | Hospital management, service fees, facility operation | ~3-8% | 5-15% |
| After-sales & maintenance | Service contracts, retrofits, spare parts | ~2-5% | 25-40% |
- Project bidding and contract wins: Large-scale contracts (single-project values often ranging from tens to hundreds of millions RMB) drive top-line volatility-securing a few major contracts in a year can materially boost revenue.
- Vertical integration: In-house manufacturing of steel components and polyester products reduces procurement costs and shortens lead times, improving project margins and cash conversion.
- Cost control & execution: Operational efficiency on fabrication lines, logistics optimization for oversized components, and effective on-site management determine EBITDA outcomes.
- Working capital & project financing: Progress-billing, advances from clients, and construction financing arrangements impact cash flow timing and net gearing; efficient receivables management is critical for stable liquidity.
| Key Financial Metrics (Illustrative/Approx.) | Value |
|---|---|
| Annual Revenue (approx. 2023) | RMB 1.8-2.5 billion |
| Net Profit Margin (typical range) | 4-9% |
| Return on Equity (ROE, typical) | 8-14% |
| Debt-to-Equity (typical) | 0.3-0.8x |
| CapEx intensity | Moderate - periodic investment in fabrication, fiber lines, and facility upgrades |
- Revenue sensitivity: Market demand for commercial/municipal construction, macro infrastructure spending, and property market cycles directly affect order intake.
- Input-cost exposure: Steel, polymer feedstock, and logistics costs materially affect margins; hedging, long-term supply agreements, and localized procurement mitigate volatility.
- Execution risks: Timely fabrication, on-site safety and quality control, and claims management determine final contract profitability.
- Diversification benefits: Polyester product sales and recurring healthcare/property income smooth cyclicality inherent in large-project contracting.
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ): How It Makes Money
Zhejiang Southeast Space Frame Co., Ltd. (002135.SZ) generates revenue primarily through engineering, manufacturing and after-sales services across three core pillars: steel structures and space frame contracting, polyester filament production, and healthcare-related services. The firm leverages large-scale project execution capabilities, in-house fabrication facilities and vertical integration to capture project margins and recurring product sales.- Primary revenue drivers: large public and commercial construction contracts for steel structures and space frames.
- Secondary drivers: polyester filament manufacturing (industrial textiles) and hospital/healthcare service operations.
- Service revenues: installation, maintenance, engineering consulting and prefabrication for major infrastructure projects.
| Metric | Value |
|---|---|
| Market capitalization (as of 2025-12-12) | ≈ 4.95 billion yuan |
| Revenue (2024) | 11.24 billion yuan (-13.52% YoY) |
| Analyst EPS growth forecast (next 3 years) | 33.2% CAGR |
| Core business segments | Steel structures & space frames; Polyester filament; Healthcare services |
| Notable awards | Nomination Award of Zhejiang Provincial Government Quality Award; Hangzhou Municipal Government Quality Award |
- Competitive advantages: proven project delivery, integrated fabrication capacity, recognized quality certifications and local government relationships.
- Risks/short-term headwinds: 2024 revenue contraction indicates market cyclicality and competition in construction demand.
- Growth levers: cross-selling polyester filament into industrial clients, scaling healthcare services, and higher-margin engineering consulting.

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