Zhejiang Sixiong Rope Industry Co.

What Zhejiang Sixiong Rope Industry Co. does

Zhejiang Sixiong Rope Industry Co., founded in 1958 and headquartered in Linhai, Zhejiang, is a Chinese manufacturer of synthetic fiber ropes serving maritime, offshore marine engineering, fisheries, and civilian/industrial customers. Its product portfolio spans UHMWPE, nylon, polypropylene, polyester, and aramid fiber ropes, organized into multiple business divisions including shipping, offshore mooring, and lifting solutions (via the Liftmax brand), and produced at a scale of more than 35,000 tons annually across 270+ pieces of production equipment and 350+ employees. The company holds the only dual ABS and DNV deepwater offshore mooring type approvals in China, ranked 5th globally and 1st in China for OCIMF MEG4 recognition from DNV, and operates a 2,500-ton horizontal rope testing machine — the only one of its kind in China.

The company monetizes primarily through direct sales of finished rope products to shipyards, offshore operators, port operators, and industrial users, complemented by full-lifecycle services covering rope selection, installation, in-service inspection, and recycling, delivered through a network of regional service stations across China. It has a long-standing OEM export relationship with Japan's Obma Rope covering European and US markets, and serves flagship Chinese projects such as CNOOC's Lingshui 17-2 and Deep Sea No. 1 platforms, China Shipbuilding Corporation vessels, and CMSK shipping fleets. In 2021 it received a strategic investment from COSCO Shipping International (HKEX: 00517.HK), which also anchors a joint research institute focused on intelligent ropes and next-generation mooring systems.

Its intellectual property base includes 52 authorized patents and 28 pending applications, and it operates a designated Special Rope R&D Center together with joint laboratories including one with Shanghai Maritime University. The recently launched GREEN FORCE bio-based rope line signals entry into sustainability-oriented product segments, while continuing to support mission-critical applications such as Shenzhou spacecraft recovery systems.

Name

Zhejiang Sixiong Rope Industry Co.

Legal name

浙江四兄绳业有限公司

Website

https://fbrope.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

251–500 employees

Short description

Zhejiang Sixiong Rope Industry is a Chinese synthetic fiber rope manufacturer serving shipyards, offshore operators, fisheries, and industrial customers with UHMWPE, nylon, polypropylene, polyester, and aramid ropes, holding dual ABS/DNV deepwater mooring type approvals.

Ownership category

akta.pro rank

Product category

Industrial Synthetic Fiber Ropes

NAICS

Rope, Cordage, Twine, Tire Cord, and Tire Fabric Mills (314994)

akta.pro primary industry

Industrial Ropes, Cords, Twines & Netting (Mooring/Lifting/Fishing/Load Restraint) (IMAOADAK)

akta.pro secondary industries

Lifting Accessories & Rigging (Slings, Shackles, Hooks, Spreaders) (IMAHAJAI), Lifting Attachments & Material Handling Accessories (Fork Attachments, Slings, Rigging) (IMAHABAJ), Technical Fabric Mills (Performance/Protective/Medical Substrates) (IMAOABAH)

Keywords

• Synthetic fiber ropes
• Marine mooring ropes
• Offshore engineering ropes
• Lifting slings
• Commercial fishing ropes

Headquarters

HQ city

Linhai

HQ country

China

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Fiber Rope Manufacturing and Sales: Core revenue stream from manufacturing and selling a full range of synthetic fiber ropes including UHMWPE, nylon, polypropylene, polyester, and aramid ropes. Products range from 3mm to 300mm diameter and up to 3000m single length.
2. Engineering Solutions and Project Services: Provides full lifecycle engineering solutions including rope selection, design, R&D, testing, installation, and decommissioning services for fiber ropes, mooring systems, rope protection nets, and subsea mooring ropes.
3. Export OEM Manufacturing: Long-term OEM manufacturing partnership with Japan-based Obma Rope (小浜制纲OBMA ROPE), with the majority of OEM products exported to European and American markets. Fiber rope single export value is industry-leading in China.
4. Specialized Industrial Applications: Custom rope solutions for specialized applications including commercial fishing, marine operations, lifting and slings, industrial uses, and renewable energy projects.

Go-to-market motion3 records

Distribution channels5 records

Marketing channels5 records

Core offering

Zhejiang Sixiong Rope Industry Co. researches, develops, and manufactures a comprehensive range of synthetic fiber ropes — including UHMWPE, nylon, polypropylene, polyester, and aramid ropes — across diameters from 3mm to 300mm and single lengths up to 3000m. Products are organized into application categories including mooring and towing, lifting slings, commercial fishing, industrial winch ropes, and energy/heavy equipment ropes, complemented by accessories such as thimbles, mooring shackles, and protective covers. The company also provides full-lifecycle engineering solutions including rope selection, design, R&D, testing, installation, and decommissioning services for major offshore oil and gas, marine engineering, and shipbuilding projects.

Product overview

Zhejiang Sixiong Rope Industry Co. is a comprehensive fiber rope manufacturer offering a complete portfolio of synthetic rope products across multiple material types (UHMWPE, nylon, polypropylene, polyester, aramid, and mixed fibers) organized into five core application categories: Mooring and Towing, Lifting Slings, Commercial Fishing, Industrial Applications, and Energy Heavy Equipment. The company complements its rope offerings with accessory products including thimbles, mooring shackles, and protective covers. Additionally, the company provides specialized engineering solutions for critical national infrastructure projects including deep-sea oil platform mooring systems, polar research vessels, offshore wind installations, and marine research equipment, positioning itself as a one-stop provider from standard products to customized engineering applications.

Differentiator

Problem solved

Functional benefit

Brands

• GREEN FORCE™: GREEN FORCE™ bio-based series environmentally friendly mooring ropes launched by Four Brothers Rope Industry, featuring renewable bio-based materials for sustainable applications.

Products and services

• UHMWPE Ropes (Ultra-High Molecular Weight Polyethylene Ropes, 超高分子量聚乙烯缆绳) High-performance fiber ropes made from UHMWPE material for marine mooring, towing, and heavy industrial applications requiring exceptional strength and durability.
• Polyamide/Nylon Ropes (聚酰胺缆绳/尼龙缆绳) Synthetic fiber ropes made from polyamide (nylon) offering excellent abrasion resistance and elasticity for marine and industrial applications.
• Polypropylene Ropes (聚丙烯缆绳/丙纶缆绳) Lightweight synthetic ropes made from polypropylene, resistant to chemicals and moisture, commonly used in marine and fishing applications.
• Polyester Ropes (聚酯缆绳/涤纶缆绳) Durable fiber ropes made from polyester offering excellent UV resistance and low stretch properties for mooring applications.
• Aramid Ropes (芳纶缆绳) High-strength aramid fiber ropes with excellent heat resistance and minimal stretch used in demanding industrial and marine applications.
• Mooring and Towing Ropes (系泊拖带) Specialized ropes designed for ship mooring and towing operations serving the maritime shipping industry with products for vessel mooring, harbor operations, and towing services.
• Lifting Slings (吊索吊具) Fiber rope slings and lifting equipment including flat slings, round slings, and lifting devices for industrial lifting and cargo handling applications, marketed under Liftmax and LiftmaxPlus brands.
• Commercial Fishing Ropes (商业捕捞) Rope products designed for commercial fishing operations including aquaculture ropes and fishing gear ropes.
• Industrial Application Ropes (工业应用) Industrial rope products including winch ropes for vehicles and machinery serving various industrial sectors beyond marine applications.
• Energy Heavy Equipment Ropes (能源重装) High-performance ropes designed for energy sector applications including offshore oil and gas platforms, mining operations, and marine engineering projects.
• Engineering Solutions (工程解决方案) Customized rope engineering solutions for major projects including deep-sea oil and gas mooring systems, deepwater research vessels, offshore wind installations, and infrastructure protection systems; provides full lifecycle services from rope selection, design, R&D, testing, installation to decommissioning.

Quantifiable outcome

• Successfully broke European and American monopoly on deepwater mooring ropes by winning CNOOC Lingshui 17-2 project contract
• +2 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Shanghai Maritime University (上海海事大学)coreStrategic or Co-development PartnerEstablished a joint laboratory for 'New Materials, New Technologies, New Applications' with Shanghai Maritime University. The company has also established an enterprise scholarship at the university. Collaboration areas include fiber and rope basic theory research, product technology development, testing methods and equipment research, and engineering testing research. The company has also worked with Donghua University, Dalian University of Technology, Dalian Maritime University, Qingdao University of Science and Technology, and Qingdao University.
• IMPA (International Marine Purchasing Association)minorOthersHeadquartered in London, IMPA is an international organization of shipowners and maritime purchasing professionals. Sixiong Rope is a member, enabling participation in international rope standard discussions.
• Cordage Institute (CI) - International Rope Industry AssociationminorOthersInternational rope industry association member participating in international rope standard discussions and development.
• Obma Rope (小浜制纲OBMA ROPE)coreOEM/ Whitelabel/ Licensing PartnerLong-term OEM manufacturing partnership where Sixiong produces ropes for Obma Rope, a Japanese rope manufacturer. The majority of OEM products are exported to European and American markets.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Yale Cordage: US specialty rope manufacturer focused on high-performance synthetic fiber ropes for marine, arborist, rescue, and industrial markets. Comparable as a technology-driven synthetic rope specialist competing in similar premium fiber rope niches.
• Marlow Ropes: UK-based rope manufacturer producing synthetic fiber ropes for marine, defense, industrial, and lifting applications. Directly comparable to Sixiong's marine mooring and lifting sling product lines.
• Katradis Marine Ropes: Greek marine rope manufacturer producing synthetic fiber ropes for ship mooring, towing, offshore, and fishing applications. Comparable to Sixiong's marine and offshore mooring rope product portfolio.
• Teufelberger: Austrian family-owned manufacturer of fiber and steel wire ropes for marine, offshore, industrial, and safety applications. Directly comparable to Sixiong as a synthetic-fiber rope specialist serving marine mooring and lifting customers with certified products.
• Samson Rope Technologies: US manufacturer of high-performance synthetic fiber ropes (UHMWPE, nylon, polyester, aramid) for marine, industrial, and safety/lifting applications. Directly comparable in synthetic fiber rope technology and end-markets served.
• Lankhorst Ropes: Dutch manufacturer of high-performance synthetic ropes for offshore, marine, and industrial markets including deepwater mooring. Direct competitor in the deepwater mooring rope segment where Sixiong has its core certifications.

Emerging players

• Novatec Braids: US manufacturer of specialty synthetic fiber ropes and braids for marine, aerospace, defense, and industrial applications. Comparable as a specialty synthetic rope producer serving high-performance industrial end-uses.

Broad incumbents

• WireCo WorldGroup: US-based global manufacturer of wire rope, synthetic rope, and engineered products serving offshore oil & gas, mining, crane, and industrial markets. Direct competitor in deepwater mooring and heavy-lift rope segments where Sixiong competes.
• Bridon-Bekaert: Global leader in steel wire rope and synthetic rope solutions following the merger of Bridon and Bekaert, serving offshore, mining, crane, and industrial lifting end-markets directly comparable to Sixiong's mooring, towing, and lifting sling portfolio.

Regional players

• Dongyang Rope (Korea): Korean manufacturer of synthetic fiber ropes serving marine, offshore, and industrial markets in Asia. Comparable regional peer to Sixiong in the Asian synthetic fiber rope manufacturing landscape.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/FBRope
• LinkedInlinkedin.com/company/fbrope

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Zhejiang Sixiong Rope Industry Co.