Corporate Style_Shenzhen Circle Testing Certification Co., Ltd.

About Us

Influential Third-Party Testing Organization in Intelligent Manufacturing Industry

Shenzhen Yuanzhou Testing Technology Co., Ltd. is a third-party testing & certification service enterprise focusing on inspection, testing and certification assessment for new display products, audio-video & multimedia equipment, lighting goods and IoT products. We are a National High-tech Enterprise & Shenzhen Specialized, Refined, Unique & Innovative SME, with headquarters located in Longhua District, Shenzhen covering over 4,000 sq.m.

Equipped with precision instruments and complete labs: Ultra HD Darkroom, Optoelectronic Performance Lab, Visual Evaluation Center, Photobiological Safety Lab, Acoustic Testing Lab, RF Wireless Lab, Electrical Safety Lab, EMC Lab, Environmental Reliability Lab & MTBF Durability Lab. Core R&D technicians are recruited from globally renowned certification bodies and top domestic manufacturers. We also provide one-stop services including EMC design & rectification, global market access certification solution, enterprise standard drafting & filing, IP application, laboratory system consultation, professional training and lab construction setup.

Customer-oriented mindset Customer First

Sustain growth via innovation Innovation & Progress

Win-win with clients, partners & staff Win-Win Cooperation

Integrity as fundamental principle Honesty & Integrity

Corporate Culture

Corporate Vision

Build a platform enabling employees to realize spiritual and material achievements

Become a leading testing technology provider within intelligent manufacturing sector

Looking ahead, we commit testing science to industrial development and global expansion. We gather top talents, integrate advanced technologies and renovate service modes. Focus on client demands with smart solutions to create core value and drive industrial upgrade. Strive to build a world-class testing science enterprise and fulfill our corporate vision!

Corporate Mission

Focus on Clients | Create Value | Lead Development

Stay true to original mission, stick to strategic focus, accumulate strengths and dedicate to maximizing client value. Set industrial benchmark to energize industry advancement and innovative development with professionalism, integrity, rigor and reliability.

Core Values

Professionalism, Innovation, Diligence & Win-Win

Development History

2026
2025
2024
2023
2022
2021
2020
2019
2018

2026

Establish Software Evaluation Center

Build one-stop testing & certification platform for audio, optics, vision & display products
2025

Set up anechoic chamber & acoustic performance lab

Release 2 voluntary certification specifications jointly with CQC

Issue White Paper of Mini/Micro LED Display Industry 2025

Participate in drafting Standard for Quality Classification & Top-runner Evaluation of Commercial Mini LED Display Screen

Participate in drafting Test Method for Projection Screen Luminance

Launch Technical Specification for Classification Certification of Micro LED Display Module

Re-accredited as National High-tech Enterprise

Re-certified as National Sci-Tech SME

Accumulated 6 invention patents, 35 utility model patents and 11 software copyrights

Become member of China Video Industry Association
2024

Authorized as designated testing lab of CQC (V-341)

Obtain A2LA laboratory accreditation (7259.01)

Acquire FCC recognized lab qualification (325763)

Approved as SAA recognized lab of Australia (8795502)

Qualified as China Energy Efficiency Filing Laboratory

Co-release HDR Classification Spec for Indoor Mini LED Module with CQC

Launch voluntary certification mark for LED Display Visual Grading together with TÜV SÜD

Certified as evaluation institute for First-set Equipment of New Display Industry

Authorized compliance service provider for TEMU platform

Obtain 5 invention patents

Obtain 11 utility model patents
2023

Construct branch laboratory in Guangming District

Listed into Longhua District Statistical Industrial Enterprise

Certified as Shenzhen Specialized, Refined, Unique & Innovative SME

Join Shenzhen 8K UHD Video Industry Alliance as member

Total 26 patents & 11 software copyrights obtained
2022

Expand environmental reliability laboratory

Expand electrical safety laboratory

Build Ultra HD Display Testing Lab

Certified as National Sci-Tech SME

Recognized as Longhua Innovative SME
2021

Set up Photobiological Safety Lab

Build Aging & Lifespan Test Lab

Certified as Shenzhen Sci-Tech SME

Awarded National High-tech Enterprise Certificate

Honored as Guangdong Provincial Trustworthy Contract-abiding Enterprise for the second consecutive year

Granted 1 invention patent & 7 utility model patents
2020

Build PPE Lab, 966 RF Anechoic Chamber & RF Testing Room

Shortlisted in National High-tech Enterprise Incubation Pool

Certified as Shenzhen Innovative SME

Awarded Guangdong Provincial Trustworthy Contract-abiding Enterprise

Become director member of Shenzhen Lighting & Display Industry Association

Authorized as TÜV Rheinland UA Laboratory
2019

Construct EMC, Reliability & Optics Labs

Obtain CNAS accreditation (L12276)

Qualified as Innovation Voucher Service Organization of Shenzhen Science & Technology Bureau

Member of Shenzhen Product Testing Industry Association

Member of Shenzhen Entry-Exit Inspection & Quarantine Association
2018

Build Electrical Safety Laboratory

Get CMA accreditation for inspection & testing institute (201819013786)