Cross-Border Ecommerce Between Vietnam and China: A Merchant Playbook

The Two Directions: Vietnam to China and China to Vietnam

Cross-border ecommerce between Vietnam and China is two distinct commercial flows.

Vietnam to China means Vietnamese producers selling directly to Chinese consumers through platforms such as Tmall Global and JD Worldwide. These platforms handle the storefront, RMB payment processing, and regulatory compliance. The consumer base is mainland Chinese buyers who discover Vietnamese products through Xiaohongshu content and search.

China to Vietnam means Chinese brands using Vietnamese platforms — primarily Shopee (~56% market share) and TikTok Shop (~41%) — to reach local consumers. These platforms operate in Vietnamese, accept local payment methods, and require compliance with Vietnam's ecommerce regulations.

The direction determines every downstream decision: platform choice, logistics, payments, and marketing channels.

Platform Selection by Direction

For Vietnam Brands Entering China

Vietnam brands entering China typically start on Xiaohongshu because the platform's content-driven model allows them to build demand before committing to storefront infrastructure. KOC seeding and organic note publishing are the standard first steps before listing on Tmall Global or JD Worldwide.

For Chinese Brands Entering Vietnam

Chinese sellers entering Vietnam face the inverse challenge: local platforms, Vietnamese-language requirements, and approximately 40% of orders still cash-on-delivery. Payment integration is not the barrier — consumer trust and local operational competence are.

Cross-Border Logistics: The Basics

For small parcels (typically under 2 kilograms), postal and express courier networks handle consumer orders with 5 to 12 day transit times to major Chinese cities. Bonded warehouse models in free trade zones are available for bulk shipments entering China.

For larger shipments, ground and rail freight across the Vietnam-China border is well established, particularly for agricultural products and manufactured goods moving northward.

Merchants should confirm current customs requirements with a licensed customs broker. Food, cosmetics, and health products face additional labelling and safety certification requirements in both directions. Vietnamese law requires foreign brands selling directly to Vietnamese consumers to register with the Ministry of Industry and Trade.

Payment Infrastructure: What Changed in 2026

Between December 2025 and August 2026, Vietnam's NAPAS integrated all three major Chinese mobile payment systems: UnionPay (December 2025), Alipay+ (April 2026), and WeChat Pay (August 2026).

Chinese consumers can now scan VietQRGlobal codes at participating Vietnam merchants and pay directly in RMB, with VND conversion handled automatically. For Vietnam merchants, this means Chinese tourist traffic — 5.3 million visitors in 2025 — can be captured without payment friction.

For ecommerce, Vietnam brands selling into China face no payment gap: Tmall Global and JD Worldwide handle RMB transactions natively. Chinese sellers on Vietnamese platforms must still integrate local methods: MoMo, VNPay, bank transfers, and cash-on-delivery.

Tax and Compliance Considerations

Cross-border ecommerce transactions trigger tax obligations in both jurisdictions.

For Vietnam brands selling into China, goods entering through cross-border channels are subject to import duties, VAT, and consumption tax. The de minimis threshold is RMB 5,000 per transaction, with an annual limit of RMB 26,000 per consumer. Tmall Global and JD Worldwide typically handle tax collection at checkout.

For Chinese brands selling into Vietnam, foreign sellers must register with Vietnam's Ministry of Industry and Trade. Food, cosmetics, and health supplements require Vietnamese-language labelling and Ministry of Health compliance. Cross-border mobile payments settling in VND are treated as standard revenue for Vietnam tax purposes.

In both directions, merchants should confirm current requirements with a licensed customs broker or tax advisor before launching.

Marketing Channels: The Content-to-Commerce Pipeline

Cross-border ecommerce does not function without content marketing. Chinese consumers discover foreign products through social content; Vietnamese consumers discover Chinese products through platform algorithms and livestreams.

For Vietnam to China, the pipeline is Xiaohongshu discovery followed by WeChat conversion. Xiaohongshu serves as the awareness and research layer: travellers see product posts, save shopping lists, and build purchase intent. WeChat Official Accounts and Mini Programs handle conversion: product browsing, payment, and customer management. Douyin short video amplifies reach for visually appealing products.

For China to Vietnam, the primary channels are Shopee and TikTok Shop's native content tools — short-form videos, livestreams, and in-app advertising. Facebook and Zalo supplement platform-native marketing for brand building and retargeting.

A full-service marketing approach combining Xiaohongshu content seeding, WeChat ecosystem management, and short video production typically requires a monthly investment between USD 5,000 and USD 15,000.

Building a Sustainable Operation

Sustainable cross-border ecommerce requires integrating operational layers into a coherent system.

Inventory planning must account for longer replenishment cycles. Cross-border shipping introduces 7 to 21 days of additional lead time. Merchants selling into China should maintain buffer stock in bonded warehouses or platform-operated fulfilment centres.

Customer service must operate in the consumer's language. Chinese consumers expect Mandarin support through WeChat. Vietnamese consumers expect Vietnamese support through Zalo. Automated translation helps but does not replace human fluency for complaint resolution.

Returns management is structurally more complex across borders. Merchants should establish clear return policies before launching and factor return logistics into pricing.