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Producer

Hengtong Optic-Electric Co., Ltd.

HQ CN · Jiangsu Provincewebsite ↗

Suzhou-based Chinese optical fiber and cable conglomerate (SSE: 600487). China's largest optical fiber and cable manufacturer by some measures; ~15% international market share. Produces preforms via VAD technology (acquired through OFS/Hengtong JV, est. 2010) and its own wholly-owned preform plant (Hengtong Photoconductive New Materials, est. 2016, planned 1,500 t/yr capacity). Won 15.48% share (15.3M fiber-km) of 2025/2026 China Mobile cable tender. Also produces submarine cables, energy cables, and satellite communication systems. Claims preform self-sufficiency since ~2017.

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Inputs supplied

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Goods downstream

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Facilities

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Stories

What they make

1 input Hengtong Optic-Electric Co., Ltd. supplies

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manufactured

Optical Fiber Preform (Silica Glass Rod) →

5% shareSubstitutability 50%12 mo lead

Where it shows up

Goods downstream

Essential goods that depend on something Hengtong Optic-Electric Co., Ltd. makes — pick one to see the full supply chain.

Digital

Fiber optic cables and networking →

Where they make it

1 facility

Hengtong – Suzhou Preform Complex (Jiangsu, China) →

CN

Jiangsu Province

Two co-located preform production operations in Suzhou, Jiangsu: (1) Jiangsu OFS Hengtong Optical Technology Co., Ltd. (JV with OFS/Furukawa, est. 2010) — uses OFS VAD preform technology to produce preforms in China; (2) Hengtong Photoconductive New Materials wholly-owned plant (est. 2016, RMB 500M investment, planned 1,500 t/year preform capacity) — Hengtong's own independent preform production. Together represent Hengtong's claimed preform self-sufficiency since ~2017. Suzhou is the center of Hengtong's manufacturing ecosystem.

What else they do

Business segments

The company's full revenue map — where this supply-chain role fits within their broader business.

  • Optical Fiber & Cables

    45%

  • Power Cables

    30%

  • Internet & Communications Systems

    15%

  • New Energy Materials

    10%

Stories from the supply chain

Editorial about Hengtong Optic-Electric Co., Ltd.

The hidden hand

The fiber optic giant building undersea networks

49% stake in Huawei Marine Networks

Hengtong Group, China's largest cable maker, controls one of three major submarine cable integrators after acquiring a majority stake in Huawei Marine Networks.

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Intelligence

What's known

Sourced claims about this company's role in supply chains — chokepoints, concentration, incidents, dual-use connections.

  • Did you know2024

    Hengtong Group — China's largest fiber optic cable company — acquired a 49% stake in Huawei Marine Networks in 2019, renaming it HMN Technologies. HMN is now one of the world's three major submarine cable system integrators (alongside SubCom/US and Alcatel Submarine Networks/France). Hengtong's terrestrial fiber preform technology, submarine cable manufacturing (Changzhou), and HMN's system integration capability create a vertically integrated undersea internet infrastructure company under Chinese ownership — a combination that Western intelligence agencies have explicitly flagged as a concern for undersea cable surveillance. The same company making fiber for 5G towers is also laying the cables under the Pacific.

    Wikipedia ↗
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