Collaboration without borders: ONLYOFFICE partners with Cloud Systems Asia
Cross-border document collaboration involving Mainland China has long meant a frustrating trade-off: painful latency, throttled bandwidth, and tough questions about where your data actually lives. Now, ONLYOFFICE and Cloud Systems Asia (CSA) are changing that with a Hong Kong-hosted FileCloud + ONLYOFFICE solution built to deliver secure, high-performance collaboration for global teams. Here’s how this partnership removes the performance barriers and keeps your data firmly within a trusted regional perimeter.

ONLYOFFICE & FileCloud: solving the cross-border collaboration challenge
Managing document collaboration that involves Mainland China has always been tricky. Standard methods for overseas users accessing files stored in Mainland China often lead to severe latency and bandwidth throttling, which slows teams down and frustrates everyone involved.
CSA solves this with a smart, purpose-built approach. By hosting a complete Microsoft 365-like solution in Hong Kong that combines FileCloud and ONLYOFFICE, CSA creates a high-performance regional bridge.

Here’s what that means in practice:
- For Mainland China users: smooth, reliable connections to global teams.
- For worldwide users: low-latency, real-time access from anywhere.
- For everyone: secure file storage, seamless sharing, and online document co-authoring in one turnkey package.
This Hong Kong-hosted architecture delivers the key functionality enterprises expect, while removing the performance barriers that usually stand in the way of true cross-border teamwork.
Data sovereignty and on-premises security
Security and data control are top priorities for any enterprise, and this solution is built with both in mind. Some organizations have raised concerns about servers hosted in the US, which is a valid consideration when data residency and compliance are at stake.
CSA addresses this head-on. The complete solution keeps all files localized on on-premises infrastructure, giving organizations full control over where their data lives. CSA can build and host both ONLYOFFICE and FileCloud in Hong Kong, delivering a seamless collaboration platform that connects users in Mainland China with teams around the world, all while keeping data firmly within a trusted regional perimeter.
ONLYOFFICE welcomes Cloud Systems Asia as a new partner
We’re excited to announce a new partnership between ONLYOFFICE and Cloud Systems Asia Limited (CSA). Together, we’re making secure, high-performance document collaboration easier for global organizations, especially those working across borders with teams in Mainland China.
Cloud Systems Asia Limited is a Hong Kong-based value-added distributor that specializes in enterprise-grade file collaboration solutions. Through a strong network of channel partners, resellers, and system integrators, CSA serves organizations across corporate, government, retail, finance, healthcare, and manufacturing sectors.
This partnership matters because it brings ONLYOFFICE’s powerful editing capabilities together with CSA’s deep regional expertise. The result is a practical, ready-to-deploy solution for enterprises that need reliable collaboration without compromising on speed or security.
FileCloud + ONLYOFFICE: editing made seamless
One of the key products in CSA’s portfolio is FileCloud, and it works beautifully with ONLYOFFICE. This integration lets users open, view, edit, and co-author office documents directly within the FileCloud web interface – no need to leave the browser or switch between apps.
Your teams can work with all the popular formats they rely on every day, including text documents (.docx), spreadsheets (.xlsx), and presentations (.pptx).
Everything happens in one place, keeping workflows smooth and productivity high. It’s a straightforward way to give employees the familiar office tools they expect, fully integrated into the platform they already use.
Get started with CSA and ONLYOFFICE
This partnership opens up real opportunities for enterprises and channel partners alike. Whether you’re a global organization looking to streamline cross-border collaboration or a reseller seeking a proven, scalable solution to offer your clients, the CSA FileCloud + ONLYOFFICE combination delivers.
Ready to bring reliable, secure, high-performance document collaboration to your teams? Connect with Cloud Systems Asia to explore how this solution can work for your organization.
We look forward to what ONLYOFFICE and CSA will achieve together, and to helping enterprises everywhere collaborate without limits.

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