# Seiren to boost liquid crystal polyester fiber capacity by 50%

Seiren plans to increase production capacity of liquid crystal polyester fiber by about 50% within two years, investing several hundred million yen at subsidiary KB Seiren's plant. The fiber is used in earphone cables and optical fiber reinforcement.

- Type: Expansion
- Announced: 2019-07-16
- Where: Sabae, Fukui Prefecture, Japan
- Starts operating: 2021
- Status: announced
- Capacity: 50% increase
- Products: liquid crystal polyester fiber
- Sectors: [Industrial Textiles](https://endata.com/sectors/industrial-textiles.md)

## Companies

- [Seiren](https://endata.com/companies/40684.md)
- [KB Seiren](https://endata.com/companies/40685.md) (partner)

## Sources

- [nikkei.com](https://www.nikkei.com/article/DGKKZO47386140W9A710C1LB0000/), 2019-07-16: "セーレンはスマートフォン用イヤホンや光回線のケーブルを覆う補強材などに使う液晶ポリエステル繊維の生産能力を2年後をメドに5割前後高める。"
- [syuhokaku.com](https://syuhokaku.com/news/168637/), 2019-08-06: "今回の増産投資は、子会社であるKBセーレンの北陸合繊工場（福井県鯖江市）を中心に行われます。"

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