Introduction
As telecom operators and internet service providers across Southeast Asia, South America, and Africa accelerate their last-mile fiber deployments, the demand for lightweight, self-supporting aerial cables has grown sharply. ASU (All-dielectric Stranded Unit) optic cable - often referred to as Mini ADSS or GYFFY cable - has emerged as one of the most cost-effective solutions for short-to-medium span aerial installations where full-size ADSS is either unnecessary or too expensive.
China dominates global fiber optic cable production, accounting for over 56% of worldwide shipments. Within this manufacturing base, a growing number of factories have developed dedicated ASU cable production lines, serving export markets that require ANATEL, TLC, or IEC-certified products. This article identifies the top 10 ASU optic cable manufacturers in China for 2026, with a focus on their production capabilities, certification profiles, and suitability for overseas B2B procurement.
What Is ASU Optic Cable?
ASU optic cable is a compact, all-dielectric, self-supporting aerial fiber optic cable designed for short-span installations - typically 80 to 120 meters between poles. It uses a central PBT loose tube housing up to 24 optical fibers (G.652D, G.657A1, or G.657A2), reinforced by two parallel FRP (Fiber Reinforced Plastic) strength members, and protected by a UV-resistant PE outer sheath.
Unlike standard ADSS cable, which is engineered for long-span high-voltage environments, ASU cable is lighter, smaller in diameter (typically 6.4–7.0 mm), and significantly lower in cost. This makes it the preferred choice for:
- FTTH access networks in residential neighborhoods where pole spacing is 40–80 meters
- Rural broadband projects with moderate span requirements
- Campus LAN backbones connecting buildings via aerial runs
- ISP distribution networks in Latin American and Southeast Asian markets
- Temporary or rapid-deployment communication links for events or emergency networks
Key technical characteristics of ASU cable include:
| Parameter | ASU 80 | ASU 100 | ASU 120 |
|---|---|---|---|
| Max Span | 80 m | 100 m | 120 m |
| Fiber Count | 2–12 cores | 2–24 cores | 2–24 cores |
| Cable Diameter | 6.4–6.6 mm | 6.8–7.0 mm | 6.8–7.0 mm |
| Cable Weight | 35–42 kg/km | 38–44 kg/km | 38–45 kg/km |
| Tensile (Long Term) | 1000 N | 1000 N | 1500 N |
| Strength Member | Dual FRP (Fiber Reinforced Plastic) | ||
| Loose Tube Material | PBT (Polybutylene Terephthalate) | ||
| Outer Sheath | PE (Polyethylene), UV-resistant | ||
| Operating Temperature | -20°C to +70°C | ||
| Design Lifespan | 30+ years | ||
ASU cables comply with IEEE 1222-2004 and IEC 60794-1 standards. In the Brazilian market, ANATEL certification is a mandatory requirement for telecom project approvals.
Top 10 ASU Optic Cable Manufacturers In China 2026
In no particular order
FCJ OPTO TECH Featured
FCJ OPTO TECH, established in 1992 with a registered capital of 300 million RMB, is a national high-tech enterprise headquartered in Fuyang District, Hangzhou, Zhejiang Province. The company operates a manufacturing campus covering nearly 20 hectares with over 140,000 square meters of production facilities and employs close to 500 staff, including a strong engineering team with 20+ years of industry experience.
What sets FCJ apart in the ASU cable market is its vertically integrated supply chain. The company has achieved full coverage of the optical communication industry chain - from optical preform manufacturing (600 tons/year capacity) through optical fiber drawing (120 million km/year) to finished cable production (150 million fiber-km/year) and passive optical devices (10 million sets/year). This means every ASU cable leaving the FCJ factory starts from in-house preform and fiber, not from outsourced raw materials - giving the company direct control over attenuation performance, geometric consistency, and long-term reliability.
FCJ's ASU cable lineup covers the full range of span requirements:
- ASU 80 - 2 to 12 cores, G.652D/G.657A, max span 80m, diameter 6.4mm
- ASU 100 - 2 to 24 cores, max span 100m, diameter 7.0mm
- ASU 120 - 2 to 24 cores, max span 120m, diameter 6.8mm
All ASU cables from FCJ are produced with YOFC-grade or equivalent optical fiber, PBT loose tubes, dual FRP reinforcement, and UV-stable PE jackets. Products comply with IEEE 1222-2004, IEC 60794-1, and carry ISO 9001, CE, and RoHS certifications.
The company's manufacturing credentials are backed by real project delivery: FCJ products have been deployed across China Mobile, China Telecom, and China Unicom networks, as well as national high-speed railway lines, subway systems, SGCC power grids, and defense communication projects. On the export side, FCJ has served customers in over 80 countries across Europe, the Americas, Africa, and Asia - with particular strength in Latin American and Southeast Asian markets where ASU cable demand is concentrated.
FCJ is also one of the standard-setting members of the China Communication Industry. The company produced the first communication optical cable in Zhejiang Province and is recognized in the industry as a foundational training ground for optical communication talent - often referred to as the "Huangpu Military Academy" of the sector. Its "Fuhang" and "FCJ" brands have been rated as China famous brand products and Zhejiang famous trademarks.
For overseas B2B buyers - particularly ISPs, telecom contractors, and EPC firms sourcing ASU cable for FTTH rollouts, rural broadband projects, or campus network builds - FCJ OPTO TECH offers a combination that mid-tier cable factories struggle to match: in-house fiber and preform supply, large-scale production capacity for volume orders, engineering support for custom span and core configurations, and a documented track record across 80+ export destinations. The company provides free samples for qualification, 100% pre-shipment inspection, and 6-month replacement guarantees on all cable products.
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Founded in 1988 and headquartered in Wuhan, YOFC is the world's largest optical fiber and cable manufacturer by production volume. The company has mastered all three mainstream preform technologies - PCVD, VAD, and OVD - and maintains a global market share exceeding 15% across preforms, fibers, and cables. YOFC's annual optical fiber production capacity surpasses 100 million core-kilometers, and the company serves over 60 countries worldwide.
While YOFC is best known for backbone and submarine cable systems, its outdoor cable portfolio includes ASU-type cables under its GYFFY series. The company supplies fiber to numerous smaller cable factories as well, making it a critical upstream player in the ASU cable ecosystem. YOFC is publicly listed and maintains overseas revenue exceeding 6 billion RMB annually.
Hengtong Group
Hengtong Group, based in Suzhou, Jiangsu, ranks among the top three cable manufacturers globally. The company operates 12 overseas manufacturing bases and serves customers in over 150 countries. Hengtong's optical fiber and cable business covers the full chain from preform to finished cable, with more than 50 patented technologies in fiber optic cable innovation.
Hengtong's outdoor aerial cable range includes ASU-type constructions suited for short-span installations. The company is particularly strong in emerging market projects, with overseas annual revenue exceeding 14.7 billion RMB. Its engineering teams provide custom cable design for specific climate and span conditions, making it a viable partner for large-scale ISP deployments.
FiberHome Technologies Group
Backed by the China Information and Communication Technology Group (CICT), FiberHome is a state-backed manufacturer with a complete industrial chain from chip-level components to optical transmission equipment. Headquartered in Wuhan, the company is a key supplier to China's three major telecom operators and has secured numerous overseas national broadband EPC projects.
FiberHome's cable product line covers ADSS, OPGW, FTTH drop cable, and ASU-type aerial cables. The company's integrated hardware-software approach - pairing active transport equipment with passive physical cabling - gives it a unique position for operators seeking turnkey network solutions rather than standalone cable supply.
ZTT Group
Jiangsu Zhongtian Technology Co., Ltd. (ZTT), established in 1992, has grown into a leading enterprise in China's submarine cable and power transmission sector. ZTT serves over 70 countries and maintains an annual optical fiber manufacturing capacity exceeding 100 million core-kilometers. The company is particularly recognized for its OPGW and specialty cable products used in power utility communication systems.
ZTT's aerial cable portfolio includes ASU-type constructions for short-span deployments. The company's strength lies in integrated power-and-communication cable tenders, making it a natural choice for utility companies that need both power and fiber infrastructure deployed simultaneously.
Futong Group
Established in 1987 and headquartered in Hangzhou, Futong Group operates a complete optical fiber and cable industrial chain spanning raw materials, optical preforms, optical fibers, and finished cables. The company's annual manufacturing capacity exceeds 50 million core-kilometers of optical fiber, and its products are exported to over 50 countries.
Futong's product range includes standard outdoor loose-tube cables, aerial self-supporting cables, and FTTH drop cables. The company holds ISO 9001 certification and meets CE, RoHS, and TLC standards. Its position in the Yangtze River Delta manufacturing cluster provides strong logistics advantages for export shipments via Shanghai and Ningbo ports.
Tongding Interconnection Information Co., Ltd.
Tongding Interconnection, based in Suzhou, is a publicly listed company with deep expertise in the optoelectronic cable sector. The company possesses a complete industrial chain in optical preforms, fibers, and cables, and is a key supplier to China's three major telecom operators. Tongding has expanded into optical communication equipment, wireless communication, and network security, positioning itself as a comprehensive solution provider.
For ASU cable buyers, Tongding offers production capacity for aerial self-supporting cable types with custom fiber counts and span configurations. The company's experience in national information infrastructure projects gives it strong compliance documentation capabilities.
Anhui Changrong Optical Fiber & Cable Technology Co., Ltd. (CROFC)
CROFC, established in 2017 and based in Chuzhou, Anhui, has quickly become one of the most active exporters of ASU cable in the Chinese market. The company operates 9 advanced fiber drawing towers, 18 sheath production lines, 15 SZ stranding lines, and 11 tubing lines - with an annual fiber production capacity of 15 million core-kilometers.
CROFC is particularly focused on the ASU and Mini ADSS cable segment, offering ASU 80, ASU 100, and ASU 120 variants with fiber counts from 2 to 24 cores. The company holds ISO 9001, ISO 14001, and ISO 45001 certifications, and its laboratory has been awarded the CNAS certificate. CROFC's products have been applied in China Mobile, China Unicom, and China Telecom networks, and are exported to North America, South America, Africa, and Southeast Asia.
Hunan Feibo Guangtong Communication Equipment Co., Ltd.
Based in Changsha, Hunan, Feibo Guangtong (brand name: Feiboer) has 15+ years of experience in indoor and outdoor fiber optic cable manufacturing. The company specializes in ADSS, ASU, GYXTW, GYFTY, GYTA outdoor cables, FTTH drop cables, patch cords, and passive optical devices.
Feiboer's ASU cable offerings cover 2 to 24 core configurations in G.652D and G.657A2 fiber types, with span ratings of 80m, 100m, and 120m. The company holds ISO 9001 certification and serves markets in South America, Southeast Asia, the Middle East, and Africa. Feiboer supports OEM/ODM production and provides samples for qualification testing, with an average lead time of 15 working days.
Yeesun Cable
Yeesun Cable, headquartered in Changsha with production bases in Hangzhou, Shenzhen, and Hunan, brings over 20 years of R&D and manufacturing experience to the ASU cable market. The company's factory covers 100,000 square meters with an annual optical cable output of 500,000 kilometers, and its products have been sold to 130 countries worldwide.
Yeesun manufactures a comprehensive range of aerial cables including ADSS, ASU, OPGW, GYTS, and FTTH drop cables. The company holds over 60 national and provincial invention patents and provides a complete after-sales service team capable of offering cable testing, installation supervision, and technical services to overseas customers. Yeesun maintains an office in Turkey to support its European market operations.
How To Select An ASU Cable Manufacturer
Choosing the right ASU cable supplier involves more than comparing price per kilometer. For procurement teams managing telecom or ISP projects, the following criteria should guide supplier evaluation:
1. Vertical Integration
Manufacturers that control their own preform and fiber production - such as FCJ, YOFC, and Hengtong - offer better quality consistency and price stability than factories that purchase fiber from third parties. When fiber supply is in-house, attenuation values, geometric parameters, and coating quality are controlled from the earliest production stage.
2. Certification Profile
For different target markets, specific certifications are non-negotiable. Brazil requires ANATEL certification; many Southeast Asian operators demand TLC certification; European buyers often require CE and RoHS compliance. Verify that the manufacturer holds current, valid certificates - not just claims on a website.
3. Span Engineering Capability
ASU cable performance depends heavily on correct span design. A manufacturer that can provide engineering calculations for tensile load, sag, and wind/ice loading based on your specific installation conditions is far more valuable than one that simply ships standard catalog products. Ask whether the factory has an engineering team that can review your pole span data and recommend the correct ASU variant.
4. Production Capacity and Lead Time
For projects requiring 500+ km of cable, production capacity matters. Small factories may quote attractive prices but struggle with volume delivery. Check the manufacturer's annual cable output, number of sheathing lines, and typical lead times for orders of your scale.
5. Export Experience in Your Region
Manufacturers with prior export experience to your country or region will understand local customs requirements, documentation needs, and logistics routes. They are also more likely to have dealt with the specific certification and testing standards your project requires.
6. Sample Testing and Quality Documentation
Always request physical samples before placing a bulk order. A reliable manufacturer will provide free or low-cost samples along with full test reports - including attenuation measurements, tensile testing results, and dimensional inspection data. Insist on 100% pre-shipment inspection for production orders.
Global ASU Cable Market Outlook 2026
The ASU optic cable segment is projected to see sustained demand growth through 2026 and beyond, driven by several converging trends:
- Latin American FTTH expansion: Brazil, Peru, Colombia, and Argentina continue to roll out national broadband plans that rely heavily on aerial cable deployment. ASU cable's ANATEL certification and compact form factor make it the default choice for these projects.
- Southeast Asian ISP growth: Countries like Indonesia, the Philippines, and Vietnam are experiencing rapid ISP-driven fiber expansion, with millions of households targeted for FTTH connections over the next three years. Aerial self-supporting cables dominate these deployments due to limited underground duct infrastructure.
- African rural broadband initiatives: Government-backed universal service programs in Kenya, Nigeria, and South Africa are funding rural connectivity projects where ASU cable's low cost and easy installation are critical.
- 5G small cell backhaul: As 5G networks densify, ASU cable is increasingly used for short-span aerial connections between small cell sites and aggregation points.
- Cost pressure on operators: With global telecom CAPEX under pressure, the price advantage of ASU over full-size ADSS - typically 30–40% lower per kilometer - makes it the preferred choice for any span under 120 meters.
Industry estimates suggest that Chinese ASU cable exports will grow at a compound annual rate of 12–15% through 2028, with South America and Southeast Asia accounting for over 60% of total export volume.
Conclusion
China's ASU optic cable manufacturing landscape offers overseas buyers a wide range of options - from vertically integrated giants like YOFC and Hengtong to specialized exporters like CROFC and Feiboer. The right choice depends on your project scale, target market certifications, span requirements, and whether you need engineering support or simply catalog products.
For buyers seeking a manufacturing partner that combines in-house fiber and preform supply, large-scale production capacity, engineering-driven customization, and proven export experience across 80+ countries, FCJ OPTO TECH represents a compelling option. With 30+ years of manufacturing heritage, a complete optical communication industry chain, and a track record across China's major telecom operators and overseas infrastructure projects, FCJ is positioned to serve as a dependable long-term ASU cable supplier for ISPs, telecom contractors, and EPC firms worldwide.
To request ASU cable specifications, pricing, or free samples for qualification testing, contact FCJ OPTO TECH directly - quotes are typically returned within 24 hours.