The Hong Kong Standards And Testing Centre Ltd (STC)

We can offer a comprehensive calibration service. We have a professional team to offer accurate calibration results. We provide great calibration services according to recognized national standards. Accurate results.Traceable to recognized national standards.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Calibration Service

We offer calibration services for assorted electrical products. Our services are professional and reliable. Our calibration services have won a good reputation in the industry. For electrical products.Mechanical metrology, thermometry mass and other services.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Asian Gemmological Institute And Laboratory Limited

This is the material for the DGA gemmological diploma course. The course we organized is a gem diamond diploma originated from England. We have translated the whole set of lecture notes into Chinese version for the better absorption of the course takers. 	 Original notes in English version available 	 Also the translated Chinese version 	 Takers can accquire the DGA diploma level in Hong Kong  

DGA Gemmological Diploma Course

This color measurement service is carried out by an advanced piece of testing equipment. The color difference is detected accurately for added efficiency. This color measurement also comes with excellent after-sales services. Uses the spectrophotometer to carry out testing processes.Professional and reliable.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Color Measurement

GRG METROLOGY & TEST GROUP CO., LTD.

From general-purpose instruments and equipment to industry-specific instruments and equipment, GRGTEST is dedicated to providing customers in the industry with precise measurement and metrology services for the entire traceability chain of instruments and equipment, including design, manufacturing, calibration, testing, maintenance, operation and management, scientific research and breakthroughs, and post-market services.  Measurement and Testing Instrument Calibration and VerificationMeasurement Equipment InspectionSpecial Equipment InspectionRadiation Hygiene Testing and EvaluationMaintenance and Operation Maintenance WarrantyFault DiagnosisCalibration and RepairIntelligent Operation and MaintenanceEquipment Information ManagementDesign and Manufacturing Autonomous calibration and verification toolsHigh-precision coordinate measurement calibration system (measurement accuracy for large-sized products reaches sub-micron level)Scientific research Development of measurement methods/standardsOnline calibration/automatic calibrationQuantum diagnostic measurement/quantitative measurementExtended Services Technical TrainingDevelopment of Standard SubstancesQuality Management and Certification Services

Measurement and Metrology Services

This new color measurement service tests paint, printing, plastic and textile. The experienced professionals offer added efficiency and accuracy. This new color measurement is compatible with different standards to meet your needs.	Uses the latest equipment.	Professional and reliable.

New Color Measurement

Dany Avlas Diamonds LTD

Precisely matched diamond layouts to fit effortless in your diamond bracelets, necklaces, wedding bands, etc. natural fancy shape diamonds 0.05ct and up uncertified or GIA certified Serviced according to your parameters, mm sizes and tolerance (e.g. +/- 0.05mm) Contact us for a price quotation and delivery time Shipping worldwide 

Calibrated diamond layouts manufactured by your measurements mm size and parameters

AGIL provides professional gem-testing services to the trade sector and general public. We own 37 years of gem testing experience. We also possess in-house advanced instruments including DTC DiamondSureTM, cathodoluminescence, FTIR infrared spectrometer, Raman spectrometer, Sarin DiaMension, UV-Vis spectrometer and X-ray fluorescence analysis. 	 Jadeite jade (Fei Cui) testing. 	 Ruby, sapphire and emerald testing. 	 Diamond testing and diamond grading.  

Onsite Gem-Testing Service

Gateway Computer Resources Limited

Dynamix Dream Fit AI: Hong Kong’s First Real-Time AI Fitting Experience“More than just a mobile edit—this is a total redesign of the retail and event sensory experience.”Dynamix DreamFit AI seamlessly integrates cutting-edge AI with the traditional garment industry, making the fitting process effortless, visually stunning, and commercially driven.📸 Instant Capture, Seamless GenerationOur intuitive interface requires no complex prompts. A single snapshot instantly generates three powerful AI assets: AI Fitting Photos, AI Fitting Videos, and AI Scenarios Videos.Flexible Hardware: Momento &amp; Mirage 86 SeriesDesigned with a sleek, minimalist aesthetic, our hardware blends perfectly into high-end boutiques and exhibition spaces, elevating brand image while boosting audience engagement.Core Advantages:✅ High-Fidelity Detail: Accurately simulates fabric drape, texture, and tailored silhouettes.✅ Identity Preservation: Retains the user’s unique facial features and natural expressions.✅Advanced Customization Services : Premium customization services to create exclusive, branded AI scenes.Dynamix DreamFit AI isn't just for entertainment—it’s a powerful tool that turns fitting into ashareable, creative, and high-value commercial experience.

Dynamix Dream Fit Ai

This shows the gemstone certitication services provided by Asian Gemmological Institute And Laboratory. We grade the gemstones with objective laboratory equipments. The results is presented in the form of a certificate. 	 At this time, we support gradings of jade and diamond 	 The grading system may includes other kinds of gems in the future. 	 Comprehensive grading report on the carat, colour, clarity and cut  

Gemstone Certitication Services

Hong Kong Jewellery & Jade Mfrs Association

We provide jewellery testing services for jewellery dealers and the general public. The identification services are especially useful for distinguishing jade stones of type A and type B or even faux jade. Optical and chemical testing methods will be processed for accurate laboratory testings.
    Professional laboratory services  Protect the buyers and the general public  Certificates can be provided  

Jade and Stone Laboratory Services

Hong Kong Council for Testing and Certification

Why should you use Hong Kong’s testing and certification services? High Professional IntegrityGood Intellectual Property ProtectionHigh Technical CompetenceQuick Response to Market NeedsRobust Accreditation System Being Highly Regarded InternationallyA Free Port with Excellent Logistics SupportYou can find more information about Hong Kong’s testing and certification sector from the website of the Hong Kong Council for Testing and Certification (HKCTC): www.hkctc.gov.hk To find quality reports / certificates? Look for the HKAS Accreditation Symbol! All endorsed test reports / certificates issued by Hong Kong Accreditation Service (HKAS) accredited organisations bear the HKAS accreditation symbol with the registration number of the accredited organisations. Wide Recognition of HKAS-AccreditedOrganisations HKAS' accreditation is recognized in over 100 economies, including all major trading partners of Hong Kong such as the United States, European Union, Mainland China and Japan. Accreditation helps users to identify reliable conformity assessment service providers. You can find service providers accredited by HKAS and their scope of accreditation from the website of HKAS:www.hkas.gov.hk 

Testing Services for Jewellery

We offer professional optics ignition testing service for you. We use the high-quality equipments to test and offer the precision results. We also provide the spectacle frame testing service. Published on 31st July 2009, BS EN ISO 12870:2009 specifies the fundamental requirements for unglazed spectacle frames used with all prescription lenses.This international standard covers all types of spectacle frames including rimless mounts, semi-rimless mounts and folding spectacle frames.It is also applicable to those products that are made of natural organic materials.STC can provide you ophthalmic optics and spectacle frame testing service.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Optics Ignition Testing

V-Trust Inspection Service Co., Ltd

 	 Some tests should be done in the professional laboratory instead of testing at the factory because of accuracy or special testing types of equipment required. 	 As a leading inspection service supplier in China, V-Trust has a long-term cooperative relationship with many accredited laboratories, so we can provide you with more competitive prices and professional testing arrangement. V-Trust can efficiently manage the testing of samples in liaison with qualified and accredited laboratories when you need formal certification or professional test. 	 We can go to the factory and select samples randomly on site instead of letting the factory choose them. We can select the best laboratories, based on price and lead-time, for each type of test or certification, such as Oeko-Tex 100, AZO dyes, Fastness, etc.  

Lab Testing and Certification

We offer professional testing service for your spectacles. The optics deformation testing service includes the bridge deformation service and lens retention service. We use the high-quality equipments to test and offer the precision results. Published on 31st July 2009, BS EN ISO 12870:2009 specifies the fundamental requirements for unglazed spectacle frames used with all prescription lenses.This international standard covers all types of spectacle frame including rimless mounts, semi-rimless mounts and folding spectacle frames.It is also applicable to those products that are made of natural organic materials.STC can provide you ophthalmic optics and spectacle frame testing service.Bridge deformation service.Lens retention service.To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

Optics Deformation Testing

Trans-Pacific Facilitators (HK) Ltd.

Description: 	 Carried out at&nbsp; the production when a defined minimum quantity(e.g.20%) has been manufactured to ensure that products will come up to the specifications agreed. On the inspection site advice may be given to the manufacturer in order to maintain the quality level throughout the whole production-run.  General Checking Points: 	 Factory In-line quality inspections (IPQC) planned and executed 	 Defect recording system and QC records of the factory 	 Quality checks during the production 	 Randomly inspection on small scale of finished products  

During Production Inspection (DPI)

Microtech Technology Co Ltd

Microtech Technology Company Limited. established in 2001,offers professional design and manufacturing services for hundreds types of Liquid Crytal Display modules and Touch Panels-TN,FSTN,TFT,RTP,CTP.With the advantages of high contrast,fast response time,wide viewable angle and low power consumption,Microtech's products are widely used in Industrial Equipment,Medical devices,Home Intelligent Devices,Digital cameras,Video Game Devices,Instruments etc.Since its establishment,the management has been following human-oriented strategy and developing reliance among customers.To comply with these beliefs and ISO 9001:2015 standards,Microtech keeps on recruiting capable professionals,adopting advanced technology,developing new products,improving process and enhancing quality.Based on its strong R&amp;D capacity, outstanding product quality and professional service,Microtech has won the high reputation from both mainland and oversea customers,and established long-term strategic partner relationship with them. Our products are not only satisfy the display individuation requirement of all the mobile phone manufacturing factories in the mainland,but also meet the highly uniformity and reliability requirement to the display effect of module for many famous brands in Europe,American and Asia pacific.In addition,our products which have reached the extent of excellent quality and reliability could be applied in Automotive,Medical,Power station,Transportation,Industrial &amp; Equipment and Office equipment for many famous enterprises in American,France,Italy,Australia,Korea and so on. In order to obtain an excellent quality management team and offer our customers professional &amp; efficient service and satisfied products,We comprehensively carry out Zero Defect quality management,implement ISO9001:2008 standards training and organize the examination /enrollment of quality management personnel national professional qualification.Our Mission "Efficient and timely service is the key to our success.Our success is tied with our client's success. We are dedicated to provide excellent service to our customer at the most competitive prices." To provide customer a value added LCD product by stringent quality control,comprehensive technical support,and utilization of latest technology. 

TFT Displays & Embedded Solutions

HONGKONG YILAW INSPECTION AND TESTING TECHNOLOGY CO., LIMITED

During Production Inspection (DuPro) For Electrical &amp; Electronic ProductMonitor ongoing production to detect issues early and maintain product quality. Service Highlights Conduct in-line checks on partially finished goods Review production progress, defect rates, and rework status Verify adherence to specifications and quality standards Monitor corrective actions and process controls Provide regular reports with findings and recommendations Why Choose ECQA Experienced inspectors across key sourcing regions Standardized inspection procedures for consistency and reliability Transparent inspection reports with photos, checklists, and defect trends Flexible scheduling during production phases About ECQAECQA is a third-party inspection and quality control service provider operating across Asia, Europe, and other major global manufacturing hubs. We offer product inspections, factory audits, testing, and certification to ensure quality and compliance. Book DuPro Inspection TodayDetect problems before they escalate. Contact us for a quotation. 

DuPro For Electrical & Electronic Product

 STC is the first non-governmental laboratory in Hong Kong to receive accreditation from Certification and Accreditation Administration of the People’s Republic of China(CNCA) to provide comprehensive ChinaCompulsory Certification (CCC) testing services.  Our laboratory in Dongguan, is the first non-government organization in China to obtain designated CCC testing laboratory status providing full scope CCC toy testing services and CCC testing services for information technology equipment, lighting products and audio-visual equipment.     STC provides one-stop CCC and support services from application and document preparation to type testing and factory inspection to meet all local and oversea CCC needs.  Lighting Apparatus (GB 7000 series, GB/T 17743-2007, GB 17625.1-2012, GB 19510 series) Fixed general purpose luminariesRecessed luminariesPortable general purpose luminariesAquarium luminariesMains socket outlet-mounted nightlightsGround recessed luminariesPortable luminaries for childrenBallasts for discharge lamps (excluding fluorescent lamps)A.C. supplied electronic ballasts for fluorescent lampsD.C. or A.C. supplied electronic control gear for LED modulesTo know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

CCC China Compulsory Certificate for Lighting

 STC is the first non-governmental laboratory in Hong Kong to receive accreditation from Certification and Accreditation Administration of the People’s Republic of China (CNCA) to provide comprehensive ChinaCompulsory Certification (CCC) testing services.  Our laboratory in Dongguan, is the first non-government organization in China to obtain designated CCC testing laboratory status providing full scope CCC toy testing services and CCC testing services for information technology equipment, lighting products and audio-visual equipment.     STC provides one-stop CCC and support services from application and document preparation to type testing and factory inspection to meet all local and oversea CCC needs.  Information Technology Equipment (GB 4943.1-2011, GB 17625.1-2012, GB/T 9254-2008) MicrocomputersPortable computersComputer display devices and projectorsComputer Built-in power supplies, adaptors and chargersIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact To know more or enquire any specific service, please visit https://www.stc.group and fill in our enquiry form on https: www.stc.group/contact. 

CCC China Compulsory Certificate for IT Equipment

Sun Flame Co Ltd

We have workshop in Tokyo. We have been assembling Made in Japan watch. Also, we have some inspection testing. We can water proof test for 10BAR. 

Water resistant inspection

Wenzhou Lynns Design Co. Limited

At JEFFREY LEUNG EYEWEAR DESIGN, we believe that color tells a story—one that communicates a brand’s essence, emotion, and innovation. That’s why we’re excited to introduce our new professional color dyeing service, tailored specifically for 3D printed eyewear parts and frames.  As 3D printing reshapes the landscape of eyewear design, designers gain more creative freedom than ever before. Yet one common challenge remains: how to infuse vibrant, accurate, and consistent color into these advanced materials. Our latest service addresses this gap—bringing precise, high-quality dyeing to nylon-based 3D printed parts, while elevating every frame with striking, durable color.  We offer a growing library of curated seasonal palettes and custom color matches, tailored for brands that value individuality and design integrity. Whether you're launching a bold fashion-forward collection or crafting timeless pieces, our service supports Pantone matching and bespoke development to align with your exact brand vision.  Designed with both emerging and established brands in mind, our service provides: - Rich, even color coverage across complex geometries- High repeatability for production-scale consistency- Custom color creation guided by our in-house dye specialists- Finishing options: matte, satin, or semi-gloss coating  Whether you're creating limited edition prototypes or preparing for global production, our process is designed to scale with your needs. We work closely with international eyewear brands, independent labels, and fashion-forward designers to ensure the final product is both visually impactful and technically reliable.  The result? Colorful, expressive, and durable eyewear pieces that enhance your design narrative. From bold statements to understated tones, we help brands use color as a form of identity and distinction—a critical advantage in today’s competitive market.  Ready to explore the future of eyewear with us? --- Get in Touch We’re currently accepting bookings for dyeing consultations, sampling, and production for Q3 and Q4 2025. Whether you're looking to explore a new palette or scale up your next collection, we’re here to support you with expertise, innovation, and style. 📩 Contact us to request a sample or color consultation.  

🎨 JEFFREY LEUNG EYEWEAR DESIGN Launches Premium Color Dyeing Service for 3D Printed Eyewear Components

Ching Luen Printing Co Ltd

 Highlighted is a prepress service flaunting excellent and closely monitored processes like color separation. The service features the adoption of computer to plate (CTP) system and a set of color plate making systems from Apple computers. Various advanced imaging and printing equipment is used to ensure the highest prepress quality. Highly efficient.Well-trained professional personnel.

Prepress Service

Kiran Exports (Hong Kong) Ltd

 	 We specialize in Certified Diamonds from range of 0.20 ct - 3.00 ct and above in all colors and clarities with live inventory of over 40000 certified diamonds  

My Sourcing