SHIEH YIH MACHINERY INDUSTRY CO., LTD
協易機械工業股份有限公司
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1982Founded
NT$1.8BPaid-in capital
1Plants
2Certifications
10Patents
NT$1–5BRevenue band
- Unified Business No.
- 36096704
- Industry
- Machinery & Equipment (12,724)
- Main products
- General-purpose machinery (7,534)
- Location
- NO. 446, NAN SHANG RD., KUEISHAN VILLAGE,TAOYUAN COUNTY, TAIWAN, R.O.C.
Taoyuan City (10,976) · Guishan Dist. (1,601) - Listing
- Listed (TPEx) (890) 4533
- Organisation type
- Company Limited by Shares
- Founded
- 1982-03-02
- Paid-in capital
- NT$ 1,784,341,100
- Representative
- Kuo Ya-huei
- Phone
- (03)3525466
- Website
- https://www.seyi.com
- Exporter
- Yes — registered with the Trade Administration
- Annual revenue band
- NT$1–5B
- Ownership
- Group subsidiary / corporate-held · Yu Cheng Tou Tzu Co., Ltd.
- Representative tenure
- In office since at least 2013 (13+ years)
- Growth & profitability
- Revenue 2026-09 YoY +28.2%, year-to-date +0.8%
Gross margin 21.6%, operating margin -2.6%, net margin 1.1% (2026-Q2 YTD) - Compliance record
- Occupational safety penalties: 3 case(s) in 5 years, latest 2023-01-07, fines NT$ 260,000 (Art. 30; Art. 241; Art. 277) — matched by company name
Certifications 2
- ISO 14001 (1,159)Official registry Valid until 2028-11-08 · Metal Industries Research & Development Centre (MIRDC)
- ISO 9001 (4,293)Official registry Valid until 2027-10-20 · Metal Industries Research & Development Centre (MIRDC)
Processes & materials 1
- Stamping (532) · FormingThird-party audited
Patents 10
- 2026 Rotary joint
- 2026 Oil cylinder structure for stamping vibration simulation
- 2026 Oil cylinder type buffer device
Similar companies 10
- MOSSEY CORPORATION · New Taipei City NT$20–100M estimated
Shared: Stamping - Hong-Di Co., Ltd. · Taoyuan City NT$20–100M estimated
Shared: Stamping - CHUAN KUO INDUSTRIAL CO., LTD. · Taoyuan City NT$20–100M estimated
Shared: Stamping - MIZU POWER TECHNOLOGY CO., LTD. · New Taipei City NT$20–100M estimated
Shared: Stamping - KUNNG YUAN INDUSTRIAL CO., LTD. · Taoyuan City NT$100–500M estimated
Shared: Stamping - Middle Way Industrial Co., Ltd. · Chiayi County NT$0.5–1B estimated
Shared: Real estate investment & development, Own real estate trading - REIJEN MACHINERY CO., LTD. · Taichung City NT$20–100M estimated
Shared: Stamping - ASCEND PRECISION INDUSTRIAL CO., LTD. · New Taipei City NT$100–500M estimated
Shared: Stamping - Chien Chen Development Co., Ltd. · Hsinchu County NT$0.5–1B estimated
Shared: Real estate investment & development, Own real estate trading - SANTEK CO., LTD. · Changhua County < NT$20M estimated
Shared: Stamping, Other general-purpose machinery & equipment manufacturing n.e.c.