File Sharing in China

A practical playbook for moving dailies, masters, and brand assets into and out of Mainland China—built around on‑shore storage, compliant cross‑border routes, and secure enterprise access.

What this page covers

Decision flow — choose the right path

  1. Is data staying inside Mainland China? Keep masters on OSS/COS in a mainland region, share expiring links, and restrict IPs/VPC. Use object locks + hashes for integrity.
  2. Need to export overseas? Check if your transfer fits an exemption or higher threshold per 2024 rules. If not exempt, choose Standard Contract filing, certification, or Security Assessment—our production coordination desk aligns the paperwork and timelines. If filming triggers location permissions, sync with location scouting & permits so site letters and data terms match.
  3. Blocked tools? If a platform is blocked in China (e.g., certain global drives), we provide a China‑friendly alternative workflow and avoid circumvention risks.

For nationwide shoots with multiple legal entities, centralize approvals with our China video production fixer so city units and brand HQ are in sync.

Use‑case matrix — production‑ready file sharing

Use caseRecommended routeToolsNotes
Dailies for editorial (onshore)Keep data in Mainland ChinaAliyun OSS / Tencent COS (mainland region)Expiring links; role‑scoped access; on‑shore review links
Masters to overseas postCross‑border exportFTZ‑friendly or exempt routes per 2024 provisionsChoose SCC/certification/assessment if thresholds apply
Brand assets into ChinaMirror to mainland regionMultipart upload + accelerationSet CN mirror as source of truth for local teams
Third‑party agency handoffLeast‑privilege accessTemporary accounts; IP allowlistAuto‑expire credentials post‑handoff

On‑shore object storage (OSS/COS) — how we set it up

Regions & endpoints

We select a Mainland region (e.g., Hangzhou/Guangzhou) for low‑latency shares, and enable global or overseas accelerate endpoints when sending abroad.

Example: Aliyun OSS transfer acceleration and multipart uploads; Tencent COS region selection for South China workloads.

Controls that matter

Expiring signed URLs, per‑project buckets, IP allowlists, and MFA. We also add object locks, checksum verification, and immutable audit logs for compliance‑heavy clients.

Versioning & captions

We deliver caption stacks and proxy/hi‑res splits through our post team, with documented file trees so HQ and China offices stay in sync.

Cross‑border export — 2024/2025 playbook

China eased some cross‑border data transfer burdens in 2024 and clarified procedures in 2025. Many routine transfers (trade, logistics, non‑personal data) may be exempt; others use the Standard Contract, certification, or a CAC security assessment depending on thresholds and data types. Free Trade Zone negative lists and extended validity periods (now up to three years) can also help if you qualify.

We scope the route and build the evidence file; where production touches multiple provinces, a single approval spine keeps city units aligned. For location paperwork running in parallel, see our notes on China filming permits.

Why “just send a drive link” often fails in China

Some global file‑sharing tools are blocked in Mainland China, and even unblocked ones can be unreliable without on‑shore points of presence. Our workflows avoid blocked platforms, provide reliable China‑friendly alternatives, and ensure your stakeholders can download without friction—especially when tied to a local production hub like our Shanghai production company.

Mini case studies

Global HQ ⇄ China JV

Set up twin buckets (CN + HK) with automatic mirroring, expiring links, and FTZ‑aligned export for quarterly masters. Result: predictable 48‑hour overseas handoff.

Brand campaign with APAC agencies

On‑shore dailies share; overseas editorial pulls via accelerated endpoints. Signed URL windows + IP allowlists for each agency account.

Need creative and production to dovetail with the file plan? Pair this with branded content and corporate video as needed; see also our companion explainer file sharing China.

Start a compliant file‑sharing plan

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