Environmental management system certification
ISO 14001:2015 Environmental Management System Certification
Zhejiang Xintongda Special Steel Manufacturing Co., Ltd. holds an ISO 14001:2015 environmental management system certificate against GB/T 24001-2016 — certificate number 19819EK2320R2M, issued by Beijing Xinjiyuan Certification Co., Ltd. and valid from 17 November 2025 to 28 November 2028. The certified scope is the manufacturing and sales of stainless steel seamless pipe at the production facility at No. 209, Ruiyang Avenue, Songyang County, Zhejiang. Wenzhou Xinzhe handles export marketing, quotations and supply coordination for pipe and tube supplied from this works.
Download ISO 14001:2015 certificate (PDF)Key facts
Certificate holder · Zhejiang Xintongda Special Steel Manufacturing Co., Ltd. (浙江鑫通达特钢制造有限公司), unified social credit code 91331124MA2A13FU4J. The certificate names one registered and business address: No. 209, Ruiyang Avenue, Xiping Sub-district, Songyang County, Lishui City, Zhejiang Province, China.
Global export marketing and supply · Wenzhou Xinzhe Tech Co., Ltd. (温州信哲科技有限公司). Contact Wenzhou Xinzhe for export enquiries, quotations and order coordination.
Certificate: 19819EK2320R2M, issued 17 November 2025 by Beijing Xinjiyuan Certification Co., Ltd., valid from 17 November 2025 to 28 November 2028. The certificate was first issued on 29 November 2019 and has been renewed continuously since.
Scope: manufacturing and sales of stainless steel seamless pipe — activities outside this scope are not covered by the certificate.
Surveillance: the certificate must be maintained through annual surveillance audits. The IAF multilateral recognition mark and the CNAS C178-M accreditation code are printed on the certificate itself.
What ISO 14001:2015 covers
ISO 14001:2015 is the international standard for environmental management systems (EMS), published by the International Organization for Standardization and adopted in China as the national standard GB/T 24001-2016. It requires a certified organization to:
- Identify environmental interactions. How its operations interact with the environment, and control of the significant environmental aspects — for a pipe mill this includes energy use, water management, pickling and surface-treatment effluents, and waste handling.
- Maintain legal compliance. Compliance with applicable environmental laws and regulations is a standing requirement of the standard, not a one-off check at certification time.
- Set objectives and track performance. Measurable environmental objectives are set and reviewed, so performance is tracked rather than assumed.
- Operate a continual-improvement cycle. The Plan-Do-Check-Act cycle runs across the whole system, with internal audits and management review at planned intervals.
Under this certificate, the assessed scope is the manufacturing and sales of stainless steel seamless pipe — the same products supplied to customers in petrochemical, power generation and offshore applications.
What this means for buyers of stainless steel seamless pipe
For procurement teams evaluating stainless steel seamless pipe suppliers, this certificate documents an independent third-party assessment of the environmental management system behind the products. In practical terms, it means:
- Verified compliance. The environmental controls at the Songyang County facility have been audited on site by an accredited certification body.
- Supply-chain ESG evidence. The certificate can be submitted directly in supplier qualification files, ESG questionnaires and tender documents that require ISO 14001 certification from seamless pipe manufacturers.
- Continuity, not a one-off. Maintaining the certificate requires passing annual surveillance audits throughout the validity period, so the system is audited every year — not just once at the initial certification.
Environmental certification is one layer of the works' management system. It sits alongside the ISO 9001:2015 quality management certificate and the ISO 45001:2018 occupational health and safety certificate; all factory approvals are indexed on the factory certificates page.
Download and verify the certificate
The English-language certificate is available on this page as a PDF download. Review the certification scope, standard and validity period on the document itself.
The certificate can be checked independently rather than taken at face value:
- Scan the QR code printed at the lower right of the certificate.
- Query the certification body. Search certificate number 19819EK2320R2M on the website of Beijing Xinjiyuan Certification Co., Ltd. at www.xyjc.com.
- Use the CNCA public platform. China's certification and accreditation administration publishes a national query service at www.cnca.gov.cn; search by certificate number or organisation name.
We encourage customers to verify the certificate independently — a certificate you can check is worth more than one you are only shown.
ISO 14001 certification FAQ
Is the certificate ISO 14001:2015 or GB/T 24001-2016?
Both. The certificate is issued against GB/T 24001-2016, the Chinese national standard identical to ISO 14001:2015, and both designations are printed on the certificate. The two refer to the same requirements, so a specification citing either is answered by the same document.
Which activities are covered by the certification scope?
The manufacturing and sales of stainless steel seamless pipe at the Songyang County, Zhejiang facility. Activities outside this scope are not covered — the scope wording is limited to the certified site and product, and a certificate held at one site does not automatically extend to another site or a process that was not audited.
When does the certificate expire?
The current certificate is valid until 28 November 2028, subject to annual surveillance audits. The current cycle began with issuance on 17 November 2025; the certificate was first issued on 29 November 2019.
Can I use this certificate in my supplier qualification documents?
Yes. The certificate may be cited or submitted as evidence of third-party environmental management system certification. Please keep the certificate number (19819EK2320R2M) so your team can verify its current status online with the certification body or on the CNCA public platform.
Request the certificate and order documents
Need certified stainless steel seamless pipe? Send the specification — grade (e.g. 304/316L/2205), size (OD × wall × length), quantity and destination country — together with the documentation package your project requires, and Wenzhou Xinzhe will confirm availability and what the works can issue against that order.
Contact Wenzhou Xinzhe Browse stainless and duplex pipe products