China has developed into a major global supply base for high-Tg printed circuit boards, supported by a broad laminate ecosystem and decades of PCB manufacturing experience. However, Chinese PCB manufacturers do not all offer the same combination of material access, layer-count capability, process complexity, production volume, and engineering support.
If you are evaluating high-Tg PCB suppliers in China, the useful question is not simply whether a factory can manufacture high-Tg boards. The more important question is which supplier profile fits your required laminate, stack-up, technology, order volume, quality system, and delivery model.
The eight manufacturers below represent different parts of China’s high-Tg PCB supply chain, from large high-layer-count producers to flexible prototype and small-batch specialists. The comparison is based on capability statements and product examples available on the manufacturers’ official websites as of 2026. These public claims are useful for initial screening, but final material availability and production capability should still be confirmed through an RFQ and engineering review.
Quick Comparison of High Tg PCB Manufacturers in China
| Manufacturer | Public high-Tg evidence | Core PCB capability | Typical production model |
|---|---|---|---|
| Shennan Circuits | Official capability page lists 370HR, IT180A, S1000-2, and FR408HR among supported materials | 2-68 layers in volume production and up to 120-layer samples; backplanes, HDI, and high-speed PCBs | Large industrial, telecom, and data-infrastructure programs |
| Suntak Technology | Official product pages show boards using IT180A, IT180A + IT170GRA2, S1000-2M, and other higher-Tg materials | High-layer, HDI, heavy-copper, automotive, telecom, and computing PCBs | Mid-to-large-volume automotive, industrial, telecom, and computing production |
| Kinwong Electronics | Official technical presentations list high-Tg base materials as a supported material category | Up to 80-layer HLC PCBs; AnyLayer HDI, mSAP, low-loss materials, and advanced interconnects | Large-volume automotive, telecom, server, and consumer programs |
| Tontek Circuits | Official material list includes IT180A, S1000-2M, FR408, IS410, FR406, and PCL-370HR | Multilayer, HDI, high-speed, high-frequency, and specialty PCB production | Prototype through small- and medium-volume production across multiple facilities |
| Multech PCB | Public product cases include 20-layer IT180A Tg170, 16-layer Tg170 HDI, and 14-layer Tg180 builds | Multilayer, HDI, controlled impedance, rigid-flex, high-frequency, and heavy-copper PCBs | Prototype through volume production with export-focused support |
| Bicheng PCB | Public products use IT-180A, S1000-2M, and hybrid combinations such as RO4350B + IT180A and RO4003C + 370HR | High-Tg FR-4, RF and microwave PCBs, hybrid stack-ups, HDI, and impedance control | Prototype and small-batch specialist, especially for RF and hybrid materials |
| Viasion Technology | Dedicated high-Tg page specifies a 170-250°C high-Tg range | 1-40 layers as a standard offering, with special builds up to 100 layers; HDI, blind/buried vias, and impedance control | Low-to-medium-volume and quick-turn production |
| SAYFU PCB | Published Tg170 examples include 10-layer, 14-layer heavy-copper, and 17-layer hybrid multilayer boards | Up to 24 layers; HDI, rigid-flex, hybrid materials, heavy copper, and engineering support | Prototype, NPI, and small-to-medium-volume production |
This table is a screening aid rather than a universal ranking. A supplier that is well suited to a stable, high-volume telecom program may not be the best fit for a 50-piece prototype that requires repeated stack-up changes.
Featured High Tg PCB Manufacturers in China
Shennan Circuits
Shennan Circuits provides some of the clearest public evidence of large-scale high-Tg and high-layer-count capability among Chinese PCB manufacturers. Its official PCB technical-capability page lists 370HR, S1000-2, IT180A, and FR408HR among the supported material systems, together with a broad portfolio of high-speed and high-frequency laminates.
The same capability page states a production range of 2 to 68 layers for volume manufacturing and up to 120 layers for samples. Shennan also documents backplane, HDI, RF, rigid-flex, and high-speed signal-integrity applications. It is therefore a relevant candidate for large telecom, data-center, automotive, and industrial programs where high-Tg material is only one part of a demanding multilayer specification.
Suntak Technology
Suntak distinguishes itself by publishing product-level material examples rather than relying only on a general statement that it can process high-Tg laminate. Current official pages show a 14-layer communication base-station board using ITEQ IT180A, an 8-layer computer motherboard using IT180A + IT170GRA2, and automotive or industrial products using S1000-series materials.
Suntak states that it first obtained IATF 16949 certification in 2005 and operates dedicated production facilities for automotive, high-layer, HDI, computing, and communication products. This makes it a potential fit for mid-to-large-volume projects that require formal automotive quality controls, traceability, and stable production rather than only prototype flexibility.
Kinwong Electronics
Kinwong is a large Chinese PCB manufacturer with a broad technology platform covering high-layer-count boards, AnyLayer HDI, mSAP, rigid-flex, high-frequency, and low-loss material systems. Its official technical presentations list high-Tg base materials as part of its supported material categories.
Kinwong’s current high-layer-count PCB page states a maximum layer count of 80 and describes capabilities such as 40:1 aspect ratio, 40/40 μm line width and spacing, back drilling, impedance control, and embedded components. Public documentation is stronger on its overall advanced PCB platform than on individual high-Tg laminate part numbers, so the exact grade, glass style, thickness, and factory assignment should be confirmed directly before qualification.
Tontek Circuits
Tontek Circuits publishes a detailed high-Tg material list on its high-speed PCB capability page. The listed grades include IT180A, S1000-2M, FR408, IS410, FR406, PCL-370HR, TU-752, and TU-662, with material availability shown for both advanced samples and mass production.
The company describes facilities and engineering resources across Shenzhen, Jiangmen, Zhuhai, and Nanchang. Its official history states that the Zhuhai rapid-prototyping facility supports 2-100-layer high-frequency, microwave, and specialty PCB samples, while other facilities address multilayer, HDI, assembly, and production requirements. This structure can be useful when a high-Tg project needs to move from prototype work into small- or medium-volume production without changing the overall supplier group.
Multech PCB
Multech PCB publishes several direct high-Tg production examples. These include a 20-layer IT180A controlled-impedance PCB identified as Tg170, a 16-layer three-step HDI board using halogen-free Tg170 material, and a 14-layer resin-plugged impedance-control board identified as Tg180.
Founded in 1997, Multech positions its production around HDI, multilayer, rigid-flex, high-frequency, metal-core, and heavy-copper PCB solutions. Its official company information describes support from rapid prototypes through medium- and higher-volume manufacturing. It is worth evaluating for high-Tg multilayer or HDI projects where product-level documentation, impedance control, and export support are important.
Bicheng PCB
Bicheng PCB combines high-Tg FR-4 processing with high-frequency and hybrid-material experience. Its official product catalog includes IT-180ATC high-Tg boards, S1000-2M boards, a 6-layer RO4350B + IT180A hybrid board, and a 10-layer RO4003C + 370HR hybrid laminate PCB.
This mix makes Bicheng relevant to prototypes and small batches that need high-Tg mechanical reliability together with RF, microwave, thermal, or controlled-impedance requirements. Its public product pages provide unusually detailed stack-up and material information, although every customer design should still be reviewed against current material stock, approved equivalents, and fabrication limits.
Viasion Technology
Viasion Technology presents its high-Tg capability on a dedicated product page. It lists middle-Tg material at 150°C and high-Tg material from 170°C to 250°C, together with impedance control, heavy copper, blind and buried vias, microvias, AnyLayer HDI, back drilling, and related advanced processes.
The company’s manufacturing capability page lists 1-40 layers as its normal range and special builds up to 100 layers. Viasion positions itself primarily for low-to-medium-volume PCB and assembly work, which may suit buyers that need responsive engineering and moderate production volumes without the commercial structure of a very large mass-production factory.
SAYFU PCB
SAYFU PCB represents the engineering-focused prototype and small-batch segment of China’s high-Tg supply chain. Published examples include a 10-layer FR-4 Tg170 multilayer PCB with resin-plugged vias, a 17-layer high-Tg hybrid PCB combining Tg170 FR-4 with Rogers RO4350B, and a 14-layer Tg170 heavy-copper board.
SAYFU focuses on high-mix, low-to-medium-volume production with DFM and engineering support. It is a practical option for NPI, R&D, pilot production, and specialty builds where stack-up adjustments, hybrid materials, heavy copper, and responsive communication are more important than the lowest possible unit price.
Matching Suppliers to Your Project Type
High-Tg PCB projects differ widely in volume, complexity, quality requirements, and material constraints. The right supplier profile for a 50-piece prototype is rarely identical to the best production model for a stable 10,000-piece industrial order.
| Project type | Recommended supplier profile |
|---|---|
| 50-200-piece Tg170 prototype | Flexible prototype or small-batch specialist with current laminate stock |
| 10,000+ piece industrial multilayer program | Mid-to-large-scale manufacturer with stable process control and traceability |
| Advanced server or backplane high-layer board | Large high-layer-count specialist with signal-integrity and reliability capability |
| High-build-up HDI using high-Tg material | Advanced HDI manufacturer with sequential-lamination experience |
| Exact IT180A, 370HR, or other controlled material requirement | Supplier that publicly lists the material and confirms the exact construction in the quotation |
| Frequent stack-up or design revisions | Engineering-responsive prototype or flexible-volume supplier |
| High-Tg plus high-frequency hybrid stack-up | RF and hybrid-material specialist with dissimilar-material lamination experience |
The supplier-selection process should also account for layer count, PCB thickness, via structure, impedance tolerance, copper weight, quality system, expected annual volume, and the cost impact of the complete build. For additional budgeting context, see the guide to high multilayer PCB cost factors.
High-Tg Laminate Materials in Chinese PCB Production
One advantage of sourcing high-Tg PCBs in China is access to a wide selection of domestic and international laminate systems. Public capability pages and product examples from the manufacturers above include materials from:
- ITEQ, including the IT180 and IT180A families
- Shengyi, including S1000-series high-Tg FR-4
- Isola, including 370HR and FR408HR
- Panasonic, TUC, EMC, and other high-Tg or low-loss alternatives
Material availability can be broad, but actual stock and lead time still depend on the laminate grade, copper weight, core thickness, prepreg glass style, resin content, and production location. For less common grades, thin cores, hybrid stack-ups, or controlled resin systems, confirm availability and approved equivalents during quotation rather than after layout is finalized.
High Tg should not be treated as a complete material specification. Tg, Td, Z-axis CTE, Dk, Df, moisture behavior, CAF resistance, and processing compatibility can all affect the finished PCB. The FR-4 PCB Material Guide explains how these properties influence material selection and stack-up design.
FAQ
Are Tg170 and Tg180 materials widely available in China?
Many Chinese PCB manufacturers publicly list Tg170 and Tg180 material families, and commonly requested grades such as IT180A, S1000-2M, 370HR, and FR408 appear across multiple supplier capability pages. Availability still varies by exact grade, core thickness, prepreg construction, copper weight, and factory, so stock should be confirmed for each quotation.
Can Chinese PCB manufacturers supply Isola 370HR or ITEQ IT180A?
Yes. Several manufacturers in this comparison publicly list 370HR, IT180A, or both, while others show finished product examples using these laminates. If the exact material is mandatory, state the part number on the drawing or RFQ and specify whether an equivalent material is permitted.
Can high-Tg PCB prototypes be made in China?
Yes. China has a well-developed group of prototype and small-batch manufacturers that process Tg170 and Tg180 materials. Lead time depends on layer count, laminate stock, board thickness, via structure, impedance requirements, testing, and any special lamination cycle; it should not be estimated from the Tg value alone.
Can high-Tg material be used with HDI and controlled impedance?
Yes, provided that the selected laminate construction and fabrication process support the required HDI structure and impedance geometry. High-Tg materials are used with blind and buried vias, microvias, resin-filled vias, sequential lamination, and controlled-impedance routing, but the resin system, dielectric thickness, Dk, copper thickness, and lamination behavior must be included in the engineering review.
Is a large Chinese PCB manufacturer always better for a high-Tg project?
No. Large manufacturers are often best suited to stable, high-volume programs with formal qualification and traceability requirements. Prototype builds, frequent revisions, unusual stack-ups, or small-to-medium volumes may be handled more efficiently by a flexible specialist. The best supplier is the one whose technology, materials, quality system, communication model, and production scale match the project.
Other Notable Advanced PCB Manufacturers
Victory Giant Technology
Victory Giant Technology is a major Chinese advanced PCB manufacturer focused on high-build-up HDI and high-layer-count products for AI, high-performance computing, networking, automotive, and related applications. Its current official process-capability page states that it has mass-production capability for 8-step 28-layer HDI and 70+ layer multilayer PCBs, with technical capability above 100 layers.
The company’s public documentation is detailed about high-layer and advanced HDI capability but provides less product-specific information about individual high-Tg laminate grades. It is therefore a relevant candidate for advanced AI, server, and high-layer projects, while exact high-Tg materials should be confirmed directly during supplier qualification.
Conclusion
China’s high-Tg PCB supply base is not a single homogeneous market. It includes large mass-production companies, advanced technology specialists, and flexible prototype manufacturers, each with different strengths, material access, engineering models, and optimal order volumes.
Understanding these differences helps buyers select a supplier based on actual project requirements rather than company size or generic marketing claims. A useful sourcing package should define the material grade or approved equivalent, stack-up, layer count, thickness, copper weight, impedance, via structure, quality standard, testing, annual volume, and delivery expectations.
For a broader international comparison, see the global High Tg PCB manufacturer guide. If you have a high-Tg design ready for quotation, review it against SAYFU’s rigid PCB manufacturing capabilities before finalizing the material and stack-up.