Customer Support

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HMN TAC (Customer Support) provides customers with 24h online technical service. For emergency incidents, please contact us through the hot line, and HMN TAC will respond quickly. You can use the public mailbox to describe the problem in detail. If you have the iCare account, we recommend that you also contact us by creating an iCare service request on the iCare system, our troubleshooting ticket system.

Hot Line: +86 10 56592333;

Public E-mail:;

iCare System:;

Maintenance Flow

HMN uses the iCare system to provide the maintenance services for customer. This part describes the maintenance flow.

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Case Study

The troubleshooting cases summarized by HMN is used for customer to learn the troubleshooting procedures and solutions.

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Key Teammember

Our experienced members have been engaged in the delivery and maintenance of submarine cable networks for many years who focused on providing the best technical service for customer.

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