# Sedin Engineering and Huanxiting New Materials sign COP project contract

Sedin Engineering (China Chemical Engineering) signed a contract with Huanxiting New Materials (Ningbo) Co., Ltd. for a 27,500 tonnes/year cycloolefin polymer (COP) project in Ningbo, China. The first phase will build a 5,000 tonnes/year COP resin line. The signing was reported on March 28, 2026.

- Type: Contract
- Announced: 2026-03-28
- Where: Ningbo, Zhejiang, China
- Status: announced
- Capacity: 27,500 tonnes/year (total), 5,000 tonnes/year (phase 1)
- Products: cycloolefin polymer (COP)
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md), [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [Sedin Engineering](https://endata.com/companies/63414.md) (supplier)
- [Huanxiting New Materials (Ningbo)](https://endata.com/companies/91081.md) (customer)

## Sources

- [zx.hm-w.com](https://zx.hm-w.com/news/detail/28820), 2026-03-28: "此次签约标志着国内首套环烯烃聚合物新材料项目正式启动，同时也是中国化学工程集团在特种化工新材料领域布局的又一重要突破。"

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