The Hongkong Post e-Cert Renewal Extension is a Chrome add-on designed specifically for renewing Hongkong Post e-Certificates online. This extension works in conjunction with the "Hongkong Post e-Cert Renewal Thin Client" to facilitate the online renewal process.

To use this extension, users must first install both the extension and the thin client on their Google Chrome browser and Microsoft Windows operating system. Once installed, users can easily renew their e-Certificates through the online platform.

For any inquiries or assistance, users can contact the Hongkong Post Certification Authority hotline ator send an email to

Please note that this extension is free to use and is categorized under the "Browsers" category as an add-on and tool.