# Silleno polyethylene plant in Atyrau Region reaches 40.9% completion

Construction of the Silleno polyethylene plant in Atyrau Region, Kazakhstan, with a capacity of 1.25 million tonnes per year, is at 40.9% completion. Over 5,000 workers are on site, and the first large-scale ethylene fractionation column has been installed.

- Type: New facility
- Announced: 2026-10-30
- Where: Atyrau Region, Kazakhstan
- Jobs: 5,000
- Status: under construction
- Capacity: 1.25 million tonnes per year
- Products: polyethylene
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md), [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [Silleno LLP](https://endata.com/companies/73309.md)

## Sources

- [infohub.kz](https://infohub.kz/en/article/atyrau-silleno-polyethylene-plant-construction), 2026-10-30: "Overall project progress currently stands at 40.9%."

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