about - Tinhy Geosynthetics

Tinhy Geosynthetics

Founded in 2002, Tinhy Geosynthetics Co., Ltd. has grown into one of China’s leading manufacturers of anti-seepage engineering materials. With a manufacturing base spanning 120,000 m², over 25 advanced production lines, and 300+ employees, we specialize in the R&D, design, production, and installation of geomembranes, geotextiles, GCL, and drainage systems.
Our mission — “For the Betterment of the Human Ecological System.” Tinhy aims to protect the environment and enhance infrastructure sustainability through innovative geosynthetic materials.
We operate two major brands and multiple subsidiaries in related industries, delivering complete solutions for global projects across mining, landfill, water conservation, and transportation sectors. Tinhy holds international certifications including ISO, CE, SGS, GAI-LAP, TÜV, and BTTG, and is recognized as a member of the China Geosynthetics Association.

Corporate Culture

Our Mission
To advance environmental protection and sustainable development through high-quality geosynthetic products and engineering solutions.
Our Vision
To become a global leader in geosynthetics manufacturing and engineering, delivering trustworthy solutions for every project worldwide.
Our Values
- Integrity: We build trust through transparency and responsible business practices.
- Innovation: We continuously invest in R&D to develop cutting-edge technologies like our double-locking GCL design and 10m HDPE production lines.
- Responsibility: Committed to environmental stewardship and worker safety.
- Excellence: Quality first — from materials to engineering execution.

Tinhy Geosynthetics

Why Choose Us?

Comprehensive Manufacturing Capability

Full range production of smooth and textured HDPE geomembranes, geotextiles, GCL, and drainage materials — meeting multi-material project needs simultaneously.

Author of National Standards

Drafted 7 national and 2 industry standards, and lead contributor to China’s national design atlas for geosynthetics.

World-Class Laboratory

The only in-house GAI-LAP accredited lab in China capable of comprehensive ASTM tests for geomembranes.

Certified Quality Control

ISO 9001 & 14001 systems, 22+ ASTM/ISO tests, third-party reports by SGS, TÜV, TRI, and BTTG.

Accomplishment

ISO9001

ISO14001

ISO45001

EAC-布- В.26313

EAC-膜-В.26388

Company History

The Year 2002

Jinan Tianhai Plastic Products Co., Ltd. was established and acquired 108 acres in Zhangqiu Diao Town.

● The first phase of geosynthetics production launched, with industry-first lines for 2.5mm geomembrane, 7-meter geotextile, and infrared composite geomembrane.

● The company received ISO 9001 certification.

2002

The Year 2008

● Won the title of "Top Ten Geotextile Enterprises in China"

● Won the title of "Top Ten Composite Geomembrane Enterprises in China"

● Newly put into production the first fully automated geotextile production line in China

2008

The Year 2010

● Accomplished 12 overseas projects

● Began to doing international business

2010

The Year 2012

● Earned "AAA Credible Certificate"

● Awarded 6 Patents

● Launched a 8.5-meter width geomembrane production line

2012

The Year 2014

● Started to produce MDS high tensile drainage board

● Improve the cash flow to a higher level

2014

The Year 2016

● Established“Geosynthtics Application Technology R&D Center”

● Obtained the CQC certification

● Launched a production line for GCL and waterstops

2016

The Year 2019

● Cover No.1 market share of geomembrane HDPE liners in the local market for 3 consecutive years

● Obtained the “International Geomembrane Welding Master” certification issued by the IAGA

2019

The Year 2021

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● Built the second factory

● Upgraded equipments

● Imported a number of more advanced geomembranes and geotextiles production lines

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2021

The Year 2023

● Earned "AAA Credible Certificate"

● Awarded 6 Patents

●Launched a 8.5-meter width geomembrane production line

2023

The Year 2025

● Earned "AAA Credible Certificate"

● Awarded 6 Patents

●Launched a 8.5-meter width geomembrane production line

2025

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Tel.: +86 0531-67895178 Fax: +86 0531-88596016 Email: info@tinhygeosynthetics.com Mobile phone number：1222145544