ISO 9001 Quality Management System #
Yuan Chang’s publicly listed quality certification is the ISO 9001 Quality Management System. The official About page states that the company has obtained ISO 9001 certification and uses the system as the basis for quality management.
The homepage also displays an “ISO 9001 Quality Management System Standards” icon.
Information published on the website #
- Certification: ISO 9001
- Scope: Quality management system
- Where published: Homepage and About page
- Other certifications: This page did not find a complete list of CE, UL, ISO 14001, ISO 45001, or other product or management-system certifications on the website.
Patents #
Some product pages list patented designs. For example, the Belt Filter Press page mentions:
- High-pressure reciprocating washing system: Taiwan M276045, China ZL95215797.7, Germany 202005006697.4
- Rotary drum screen thickening system: Taiwan 119141 and M348113; China ZL96249032.6
- Sludge discharge direction adjustment plate: Taiwan 126352
These are product design patents, not quality management system certifications. Confirm current patent validity and scope with Yuan Chang.
When other documentation is required #
For tenders, procurement, or regulatory applications requiring specific certificates, test reports, or patent documents, request the latest versions directly from Yuan Chang.