TUNG MUNG DEVELOPMENT CO., LTD.
東盟開發實業股份有限公司
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1968Founded
NT$4.2BPaid-in capital
1Plants
9Certifications
1Patents
≥ NT$5BRevenue band
- Unified Business No.
- 88121697
- Industry
- Basic Metals (1,590)
- Main products
- Iron & steel (868)
- Location
- No. 155, Yixiu, 5th Neighborhood, Xiuchang Vil., Xuejia Dist., Tainan City 726004, Taiwan (R.O.C.)
Tainan City (8,491) · Xuejia Dist. (101) - Listing
- Emerging stock (TPEx) (359) 1480
- Organisation type
- Company Limited by Shares
- Founded
- 1968-10-17
- Paid-in capital
- NT$ 4,160,852,170
- Representative
- Lin Fu-hsieng
- Phone
- 02-26961255
- Website
- https://www.tungmung.com.tw/
- Exporter
- Yes — registered with the Trade Administration
- Annual revenue band
- ≥ NT$5B
- Ownership
- Group subsidiary / corporate-held · POMP SHINE ENTERPRISE CORP.
- Representative tenure
- In office since 2025-10 (1 yrs); last handover 2025-10
- Growth & profitability
- Revenue 2026-09 YoY -20.9%, year-to-date +10.6%
Gross margin 2.4%, operating margin 1.1%, net margin 0.8% (2026-Q2 YTD) - Compliance record
- Environmental penalties: 2 case(s) in 5 years, latest 2023-07-26, fines NT$ 4,551,000, 1 major (water pollution)
Certifications 9
- ISO 14001 (1,159)Official registry Valid until 2028-08-07 · Metal Industries Research & Development Centre (MIRDC)
- ISO 45001 (962)Official registry Valid until 2027-03-25 · Metal Industries Research & Development Centre (MIRDC)
- ISO 9001 (4,293)Official registry Valid until 2029-09-02 · Metal Industries Research & Development Centre (MIRDC)
- ISO 14001 (1,159)Self-reported
- ISO 14064 (319)Self-reported
- ISO 14067 (83)Self-reported
- ISO 45001 (962)Self-reported
- ISO 50001 (296)Self-reported
- ISO 9001 (4,293)Self-reported
Processes & materials 8
- Stainless steel (903) · MetalThird-party audited
- Sand blasting (169) · Surface treatmentSelf-reported
- Testing & inspection (1,056) · Assembly & inspectionSelf-reported
- Quenching & annealing (147) · Surface treatmentSelf-reported
- Welding (626) · JoiningSelf-reported
- Grinding (430) · MachiningSelf-reported
- Surface treatment (576) · Surface treatmentSelf-reported
- Rolling & roll forming (28) · FormingSelf-reported
Patents 1
- 2024 Method for preparing antibacterial stainless steel by surface alloying
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Shared: Stainless steel, Quenching & annealing