# Sonoco upgrades wastewater treatment at Milwaukee metal packaging plant

Sonoco is upgrading the wastewater treatment system at its large metal packaging plant in Milwaukee, adding biogas capture and combustion, with operation expected at the end of Q3; no amount was disclosed.

- Type: Investment
- Announced: 2026-06-23
- Where: Milwaukee, United States
- Status: under construction
- Products: metal packaging, wastewater treatment system
- Sectors: [Packaging](https://endata.com/sectors/packaging.md), [Water Treatment Equipment](https://endata.com/sectors/water-treatment-equipment.md)

## Companies

- [Sonoco](https://endata.com/companies/268.md)

## Sources

- [packagingdive.com](https://www.packagingdive.com/news/sonoco-investments-west-chicago-paper-can-milwaukee-water-treatment-metal/822468/), 2026-06-23: "Sonoco is also upgrading its wastewater treatment system at a large metal packaging plant in Milwaukee, which will include biogas capture and combustion."

---
Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.