# Yunnan Germanium invests CNY 189M to expand InP substrate production line

Yunnan Chihong Germanium announced in April 2026 a CNY 189 million investment to build 4-inch and 6-inch high-quality indium phosphide single crystal production lines at an existing plant. The expansion will add capacity equivalent to 300,000 pieces of 4-inch substrates per year after 18 months of construction.

- Type: Expansion
- Announced: 2026-04-01
- Where: China
- Status: announced
- Capacity: 300,000 pieces of 4-inch equivalent InP substrates per year
- Products: 4-inch and 6-inch indium phosphide single crystal substrates
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Yunnan Chihong Germanium](https://endata.com/companies/94858.md)

## Sources

- [newspim.com](https://www.newspim.com/news/view/20261105001128), 2026-11-05: "In April, the company announced an investment of CNY 189 million to build 4-inch and 6-inch high-quality indium phosphide single crystal production lines at an existing plant."

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