# China Fourth Chemical Construction wins EPC contract for Anhui Huasu nano calcium carbonate project

China Fourth Chemical Construction Co., Ltd. (Sihua Jian) and Shandong Zhongtian Technology Engineering Co., Ltd. won the EPC contract for the second bid section of the 50,000-ton/year nano calcium carbonate project of Anhui Huasu Co., Ltd.'s calcium salt industry chain extension green integration project phase one.

- Type: Contract
- Announced: 2026-07-24
- Where: Anhui, China, China
- Status: announced
- Capacity: 50,000 tons/year of nano calcium carbonate
- Products: nano calcium carbonate
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md)

## Companies

- [China Fourth Chemical Construction Co., Ltd.](https://endata.com/companies/93162.md)
- [Shandong Zhongtian Technology Engineering Co., Ltd.](https://endata.com/companies/93163.md) (partner)
- [Anhui Huasu Co., Ltd.](https://endata.com/companies/93164.md) (customer)

## Sources

- [cnews.chinadaily.com.cn](https://cnews.chinadaily.com.cn/a/202607/24/WS6a630bc8a310d709c2fbf847.html), 2026-07-24: "这是公司中标的首个纳米碳酸钙总承包项目，标志着公司在精细化工与新材料工程建设领域取得新突破。"

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