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Zhengmao
Zhengmao
Zhengmao

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We are the undisputed leader of the offshore chain industry in China, and a well-accepted name in the offshore industry more than 20 years. We have established ourselves as the unrivaled leader in China's offshore chain industry, boasting over 20 years of recognition and trust within the offshore sector.

Comprehensive Marine and Offshore Chain Solutions

We provide comprehensive Offshore package services, including system designing, procurement, Installation. products widely used for Single point mooring, Calm Buoy system, FPSO, MODU, Spar, aquaculture and Renewable Energy marketing.
  • DEVILS TOWER SPAR
  • CATCHER PROJECT
  • BAROSSA FPSO
  • PAUL B LOYD JR
About Zhengmao

About Zhengmao

A Professional Anchor Chain Manufacturer

Zhengmao Group Co., Ltd. formerly known as Zhenjiang Anchor Chain Factory, was established in 1974 and is renowned as China's pioneering manufacturer of modern flash-butt welding chains. The company specializes in the development and production of mooring chains and anchor chains, which serve as its flagship products. Over the years, it has evolved into a specialized manufacturing enterprise with a wide range of product varieties, comprehensive specifications, and an impressive annual output capacity of 120,000 tons for both anchor chains and mooring chains.

The company boasts an extensive infrastructure comprising 14 advanced chain production lines, 6 vertical heat treatment furnaces,1 set of 400-ton fatigue testing machine, along with anchor chain tension test and inspection equipment ranging from capacities of 2,000KN to 40,000KN. Additionally, various metal cutting machines and forging equipment are available to support production needs. Furthermore, the company houses a world-class testing center equipped with exceptional physical and chemical testing capabilities; this facility has successfully obtained CNAS certification.
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Main products
24mm~172mm diameter Garde U2 and U3 anchor chain and supporting accessories.
54mm~208mm diameter Grade R3,R3S,R4,R4S,R5,R6 mooring chain and supporting accessories.
Zhengmao

Custom design services

The stable quality of over 1,000,000 tons of anchor chain and accessory products, as well as nearly 300,000 tons of mooring chain and accessory products, serves as the fundamental basis for establishing reliable connections between enterprises and customers.
 
We are dedicated to delivering comprehensive solutions for project engineering, procurement, and construction in order to provide customers with enhanced convenience and efficiency.
mooring chain factory

DIGITAL SHOWROOM

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!

Why Choose Zhengmao?​​​​​​​

  • 14
    Production lines
  • 50
    History
  • 11
    Certificates
  • 30
    Country​​​​​​​

Our Partner

We provide comprehensive Offshore package services, including system designing, procurement, Installation. products widely used for Single point mooring, Calm Buoy system, FPSO, MODU, Spar, aquaculture and Renewable Energy marketing.

Certificates & Honor

At the end of 1996, the company passed the ISO9001 quality system certification in the domestic industry. In 2008, the company passed the certification of occupational health and safety management system and environmental management system. 

Keeping Up To Latest Blogs

"Sanshan" brand anchor chains are exported to more than 30 countries and regions including Japan, South Korea, Germany, Norway, Brazil and Southeast Asia
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2026-08-11
Joining Shackles vs. Other Connectors: Which is Better for Your Project?

Prevent catastrophic mooring failures with certified joining shackles. Explore high-strength marine connectors for FPSO and offshore systems.

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2026-08-12
How to Properly Size Your Mooring Chain for Optimal Safety

Ensure offshore safety with the right mooring chain size and grade. Learn how stud links, R3-R6 grades, and custom solutions prevent asset loss.

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2026-08-10
How to Properly Install a Kenter Shackle: Step-by-Step Instructions

Master Kenter shackle installation with our step-by-step guide. Ensure marine mooring safety, explore specs, and prevent anchor chain failures.

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Zhengmao Group Co., Ltd., formerly known as Zhenjiang Anchor Chain Factory, was founded in 1974 and is China's first modern electric welding anchor chain manufacturer.

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