Company at a glance
Scale
Revenue up 31% since FY2023
Growth prospects
Expanding customer base and product roadmap
Not specified in available sources; JCET is one of the largest China-based OSATs and a Shanghai-listed company of multi-billion-RMB scale.China competition
Competes with Tongfu Microelectronics, Huatian, SJ Semiconductor, SMIC ecosystem in Advanced packaging — peers listed at sector level.
SubstituteGlobal comparables
Global reference set: TSMC, ASE, Amkor.
ASE Technology and Amkor as global OSAT benchmarks.Technical gap
Sector rated substitute vs the frontier.
Obstacles
Sector bottleneck applies
2.5D/3D integration, interposers, HBM attach, thermal management, substrate supply, and yield.All sourced facts (8)
- Founded: 1972
- Employees: approximately 20,000 globally
- Revenue / scale: Not specified in available sources; JCET is one of the largest China-based OSATs and a Shanghai-listed company of multi-billion-RMB scale.
- Listing status: Shanghai Stock Exchange (SSE) · 600584 · A-shares
- Founding and HQ: Founded in 1972 and headquartered in Jiangyin, Jiangsu.
- Listing: Shanghai Stock Exchange listed company, public since 2003; ticker 600584.
- Scale marker: Reported employee count was about 19,812 in 2023.
- Ownership / affiliate: China Resources Microelectronics is a key owner/affiliate to track for state-linked semiconductor platform exposure.
About
Outsourced semiconductor assembly and test (OSAT) provider. Revenue from one-stop IC manufacturing services: design simulation, wafer mid-test, chip/device packaging, final test, product certification, and global direct shipping.
Jiangyin · Founded 1972 · Ticker 600584
Why it matters
Advanced packaging is where China can gain system-level performance even when front-end process nodes lag. JCET matters because its scale, customer reach, and packaging technology mix make it a bridge between China's fabless companies and global assembly/test standards.
Where it sits in the stack
Advanced packaging
2.5D/3D integration, interposers, HBM attach, thermal management, substrate supply, and yield.
Assembly & test (OSAT)
High-end package complexity, global customer mix, test equipment access, and advanced substrate supply.
Key semiconductor products
- Design simulationPre-production design/simulation support for packaging/integration.
- Product certification and global direct shippingPost-test certification and direct ship-to-customer logistics.
- wafer-level and advanced packaging
- SiP modules
- wire-bond/leadframe packaging
- wafer probing and final test
- IC packaging
- Final test
- Wafer probe
- System-in-package
- Advanced packaging
Financials
600584.SS · Shanghai Stock Exchange 600584 · via Yahoo Finance ↗
Financial trajectory via annual filings via Yahoo Finance
RMB billionsMarket data refreshed daily; annual figures from exchange filings. Figures in the reporting currency shown on the chart.
Ecosystem
Partners
- AMD
Competitors
- ASE Group
- Amkor Technology
- Tongfu Microelectronics
- ASE Group (including ASE Technology Holding)
- Powertech Technology (PTI)
- Tongfu Microelectronics (通富微电, TFME)
- Huatian Technology (华天科技)
- Tianshui Huatian / Hua Tian (Tianshui, Gansu cluster)
- ASE Technology
Customers / end markets
- Fabless and IDM customers
- End-market exposure captured in the pilot: Multiple end-market applications (specifics not enumerated in captured summary)
Investors / affiliates
- JCET
Global peer set
- ASE Technology and Amkor as global OSAT benchmarks
- Powertech, Tongfu Microelectronics, and Huatian Technology for Asia OSAT peer mapping
Affiliates
- China Resources Microelectronics
Competitive position
- China position: Leading in OSAT scale. JCET is the benchmark domestic back-end services company rather than a niche packaging supplier.
- Global reference companies: ASE, Amkor, Powertech Technology, Tongfu Microelectronics, and Huatian Technology.
- Strength metric: revenue and global rank matter, but technology mix matters more for AI/HPC relevance: flip-chip, wafer-level, SiP, 2.5D/3D, and high-end test capability.
- China's largest OSAT and a top global packaging/test player; frontier issue is advanced packaging mix rather than basic assembly scale.
- High-end substrates, 2.5D/3D packaging, thermal management, advanced test, and customer qualification.
- Global comparables: ASE Technology and Amkor as global OSAT benchmarks.
- Global comparables: Powertech, Tongfu Microelectronics, and Huatian Technology for Asia OSAT peer mapping.
- Advanced-packaging constraints include ABF/substrates, interposers, bumping, thermal management, high-end test, and customer qualification cycles.
Milestones and signals
- 1972—JCET was founded.
- 2026-10-04—Market cap: RMB 115B
- FY2025—Revenue: RMB 38.9B
- Listing—Shanghai Stock Exchange (SSE) · 600584 · A-shares
What to watch
- Whether JCET holds its commonly cited #3 global OSAT ranking in annual industry tallies.
- Utilization and expansion across its eight production bases.
- Advanced packaging's share of total revenue as segment disclosure improves.
- Concentration among top customer accounts.
- Revenue split across end markets.
Questions
Last reviewed 2026-07-01Answered questions
What share of JCET revenue comes from advanced packaging versus conventional assembly/test?
Against ASE Group, Amkor Technology, Powertech Technology, and ASE Technology: China's largest OSAT and a top global packaging/test player; frontier issue is advanced packaging mix rather than basic assembly scale.
Open questions
- Which customers are confirmed for high-end packaging, and which are only reported?
- How much of JCET's capability is exposed to AI accelerators, automotive, RF, memory, and consumer devices?