Plastic waste accounting and management for a coastal province
Client: A provincial authority, northern Vietnam
A densely industrialised coastal province needed a defensible picture of how much plastic entered, circulated and leaked from its economy before it could set reduction targets or negotiate with producers.
Material flow baseline
We mapped plastic inflows, converters, consumption, collection and informal recovery into a single material flow account, reconciling industry returns against waste operator tonnages and port import data.
Leakage hotspots
Field sampling and route-level collection data located where recovery breaks down — river-adjacent wards, fishing harbours and industrial-zone contractors — and quantified the tonnage each represents.
Accounting and management system
Flows and factors moved into a structured accounting model with a reporting layer, so the province can update figures each quarter and report against national and donor frameworks without rebuilding the study.
- A single provincial plastic account replacing fragmented departmental estimates
- Prioritised intervention list ranked by tonnage recoverable per unit of spend
- Repeatable quarterly reporting cycle owned by provincial staff