RUENTEX ENGINEERING & CONSTRUCTION CO., LTD.

Unified Business No.

66394146

Industry

Non-metallic Mineral Products (2,406)

Main products

Cement & cement products (511)

Location

10F., NO.308, SEC. 2, BADE RD., JHONGSHAN DISTRICT, TAIPEI CITY 104, TAIWAN↗
Taoyuan City (10,976) · Yangmei Dist. (1,005)

Listing

Listed (TWSE) (1,087) 2597

Registration status

Approved / Active

Organisation type

Company Limited by Shares

Founded

1975-11-03

Paid-in capital

NT$ 3,107,160,000

Representative

Liao Ching-sung

Phone

02-81619999

Website

https://www.rtc.com.tw

Exporter

Yes — registered with the Trade Administration

Annual revenue band

≥ NT$5B

Ownership

Group subsidiary / corporate-held · RUENTEX DEVELOPMENT CO., LTD.、Ying Chia Tou Tzu Co., Ltd.、Jun Hua Jan Chih Chang Co., Ltd.、Huei Hung Tou Tzu Co., Ltd.

Representative tenure

In office since 2021-08 (5 yrs); last handover 2021-08

Growth & profitability

Revenue 2026-09 YoY -3.8%, year-to-date +13.9%
Gross margin 17.2%, operating margin 13.2%, net margin 10.8% (2026-Q2 YTD)

Compliance record

Environmental penalties: 46 case(s) in 5 years, latest 2026-06-15, fines NT$ 3,380,800, 1 major (industrial waste; stationary air pollution; water pollution)
Labour Standards Act penalties: 4 case(s) in 5 years, latest 2025-06-25, fines NT$ 250,000 (Art. 32; Art. 36; Art. 24) — matched by company name
Occupational safety penalties: 60 case(s) in 5 years, latest 2026-08-21, fines NT$ 1,960,000 (Art. 27; Art. 6; Art. 19) — matched by company name

Plants 3

• Yangmei Plant 1 · No. 1448, Taizhen Rd. / No. 1440, Taizhen Rd., Yangmei Dist., Taoyuan City↗ In production
• Yangmei Plant 3 · No. 1446, Taizhen Rd., Yangmei Dist., Taoyuan City↗ In production
• Yangmei Plant 2 · No. 1442, Taizhen Rd., Yangmei Dist., Taoyuan City↗ In production

Certifications 6

• ISO 45001 (962)Official registry Valid until 2027-05-31 · SGS Taiwan Ltd.
• TOSHMS (271)Official registry Valid until 2027-05-30 · SGS Taiwan Ltd.
• ISO 9001 (4,293)Self-reported
• ISO 9002 (233)Self-reported
• OHSAS 18001 (157)Self-reported
• TOSHMS (271)Self-reported

Processes & materials 3

• Testing & inspection (1,056) · Assembly & inspectionSelf-reported
• Cleanroom production (392) · Assembly & inspectionSelf-reported
• Assembly (901) · Assembly & inspectionSelf-reported

Patents 100

• 2026 Back support device for mold sealing and back support assembly for supporting formwork
• 2026 Device for supporting column structure
• 2026 Adjustment jig and method of use thereof

Recent changes 2

• 2026-08-21
  PenaltiesOccupational safety penalties: latest case 2026-08-21; 60 case(s) in 5 years, fines NT$ 1,960,000
• 2026-06-15
  PenaltiesEnvironmental penalties: latest case 2026-06-15; 46 case(s) in 5 years, fines NT$ 3,380,800

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