Vietnam has resolved that a green claim should be auditable. Its national e-commerce master plan commits the country to a greener, circular online market and sets environmental targets for the businesses inside it. What was once a brand’s flattering description of itself becomes a box the state expects ticked. The label is the easy part. The records beneath it are not.

The packaging figure is the one most cited. The arithmetic invites it: Vietnamese online retail produced roughly 300,000 tonnes of packaging waste in 2023, most of it cardboard, foam and bubble wrap. Packaging is the visible half of the problem, the half a seller fixes by changing a supplier. The eco-label asks for something no supplier swap can buy.

Vietnam’s eco-label is not a sticker; it is a full life-cycle assessment, accounting for a product’s raw materials, its manufacture, its use and its disposal. The uptake tells the story: only thirteen products were certified across 2024 and 2025, and most applicants cannot finish the evaluation without hiring consultants. Certification can run the better part of a year, longer than the documentation window firms are obliged to maintain. The certificate is free. The proof is not.

Sustainability was free only for as long as no one had to prove it.

The timing turns this into a cross-border problem. From 1 July 2026, the new e-commerce law obliges foreign platforms to register locally, verify their sellers and answer for the goods on their pages. Platforms registered before that date have until June 2027 to comply. Those sellers move catalogues by the hundred thousand: goods stitched in factories they have never visited and often cannot name. Ask them to certify a garment’s life cycle and you have asked for a record that was never kept.

None of this is idle machinery. Vietnam already runs an E-commerce Green Index, built by its e-commerce association with WWF, that scores sellers against six criteria and nineteen sub-criteria. Today it is voluntary. The plan’s purpose is to make a version of it the condition of selling at all.

The gap is structural, not clerical. A life-cycle file begins at the fibre — the mill that spun it, the dye house that coloured it, the power each one burned. A marketplace seller two borders away knows its wholesaler and little behind him. Vietnam is asking for an account of a supply chain its most numerous sellers cannot see past the first link.

Every compliance regime has a winner, and it is rarely the smallest seller. A platform with a data team can build the intake forms, chase the certificates and swallow the cost; a sole trader shipping dresses cannot. A rule written to make commerce greener will, in passing, make it larger — concentrating the trade in the few houses able to document themselves.

Vietnam can put the label on every product page. It cannot put the data behind every label. The plan assumes the record sits somewhere upstream, waiting to be summoned; across most cross-border fashion it was never written, because the claim has always been cheaper than the proof. The green label will arrive on schedule. What it certifies is the open question.