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The Hong Kong Standards And Testing Centre Ltd (STC)

The chemical, food and pharmaceutical product testing service is carried out by the renowned Hong Kong Standards and Testing Centre (STC). It providesa wide variety of analytical services, certification and technical services to the chemical, environmental, food, health supplement, pharmaceuticals, proprietary Chinese medicine, metallurgical and plastics industries. Chemical testing.Environmental analysis.Food testing.Pharmaceutical product testing.Chinese medicine testing.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. 

Chemical, Food and Pharmaceutical Product Testing

 The centre offers analytical services to demonstrate and prove that your materials and products are free from restricted substances and have fulfiled related safety standards before they enter the markets. Our tests include heave metal testing, dimethyl fumarate testing, REACH testing, and more. Offering professional and high-quality services, we are the chemical testing centre you need. Heavy metal (EN 71 Part 3) testing.Dimethylfumarate (DMF) testing.REACH (SVHC) testing.Azo dyes (aromatic amines) testing.Formadehyde content testing.Chromium VI content testing.Lead content testing.Pentachlorophenol content (PCP) testing.Cadmium testing.Alkylphenol polyethoxylate (APEO) testing.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. 

Chemical Testing and Analytical Service 

Characterization for materials used in medical devices – an analysis of a material’s composition, purity, uniformity, sterilant residuals and extractables – is an essential step to verify their suitability for human body contact, thus should not be missed out throughout the product life cycle.  Following the enforcement ofRoHS2 in the European Union, which restricts the use of specified hazardous substances in electrical and electronic equipment, and medical devices are now added to the scope of the Directive and have to be verified asRoHS-compliant.  The chemical laboratory at STC is equipped with the most advanced testing equipment; our team of experts can perform material characterization and RoHS analysis with a wide range of testing methods. We can help manufacturers identify the appropriate testing program based on the intended use of a device and material, and its expected nature of contact with the human body. Material Characterization - Guidelines &amp; Standards U.S. FDA Blue Book Memorandum GP#95-1ISO 10993-1, “Biological Evaluation of Medical Devices”ISO 10993-18, “Chemical Characterization of Materials”FDA Guidance Document, “Container Closure Systems for Packaging Human Drugs and Biologics” Material Characterization Testing Capabilities Physiochemical TestFourier Transform Infrared Spectroscopy (FTIR)High-Performance Liquid Chromatography/mass Spectrometry (HPLC-MS)Gas Chromatography / Flame Ionization Detector (GC / FID)Gas Chromatography / Mass Spectrometry (GC / MS)Inductively Coupled Plasma Spectrometry (ICP)Specific GravityGel-Permeation Chromatography (GPC)ViscosityDifferential Scanning Calorimetry (DSC)If 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. 

Chemical Testing for Medical Devices

In order to help manufacturers ensure the safety and control the quality of their products, STC provides a wide range of comprehensive Chemical Testing services for products including:  Household Chemicals Cleaners Antibacterial Effectiveness TestSodium HypochloriteContent(ASTM D2022)Anionic Active Matter ContentPhosphorus ContentEtc.Toothpaste Fluoride ContentPH ValueDiethylene Glycol ContentEtc.Industrial Chemicals Thinner(e.g. toluene, benzene content)Petroleum ProductsViscosityDensityElement ContentEtc.If 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. 

Chemical Product Testing

Chemical for Electric Toys and Children's Products EU Directive 2011/65/EU: ROHS 2Following substances are restricted:	Lead	Cadmium	Chromium VI	Polybrominated Biphenyls (PBB)	Polybrominated Diphenyl (PBDE)	Bis (2Ethylhexyl) Phthalates (DEHP)	Butyl Benzyl Phthalate (BBP)	Dibutyl Phthalate (DBP)	Diisobutyl Phthalate (DIBP)	MercuryIf you have any further question, please feel free contact us at enquiry@stc.group or visit our website: https://www.stc.group/en/services/detail/european-toy-safety

EU ROHS Chemical Testing

Chemical for Toys and Children's Products EU Directive 2009/48/EC include:             CMR Substances (Concentration Limits) Cat 1ACat 1BCat 2Fragrances (Concentration Limits) Nitrosamines and Nitrosatable Substances (Migration Limits) Restricted Substances Listed in Appendix C of Annex II TCEPTCPPTDCPBPABITCMIMICMI:MIFormamidePhenolIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/services/detail/european-toy-safety  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. 

EU Directive 2009 48 EC Chemical Testing

The Hong Kong Standards and Testing Centre provide a full range of professional testing, inspections and certification services for customers in Hong Kong, mainland China and the global market. Provide professional testing service. Full range of professional testing, inspections and certification services.Suitable for different products, such as chemicals, food, electrical, textile, and others.Accredited by China National Accreditation Service for Conformity Assessment (CNAS).Accredited by Federal Communications Commission (FCC).Accredited by Deutsche Akkreditierungsstelle GmbH (DAkkS).For customers in Hong Kong, mainland China and the global market.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. 

Professional Testing Service

STC is aSATRAaccredited testing laboratory with extensive experience in leather and footwear testing. We provide our customers consistent quality assurance and peace of mind that their products are safety compliant and ready for the market.  Our comprehensive testing capabilities extends to all types of leather products and footwear including children’s, athletic, and leather shoes.  Our Leather &amp; Footwear Testing services include: Leather Testing Leather Identification(ISO 17131)Flex Endurance Performance of Leather(BS 6159, M&amp;S, SATRA)Physical Performance Evaluation Whole Shoe, Upper Insole &amp; OutsoleSlip Resistance Testing(BS EN ISO 13287, JIS, SATRA)Hazardous Chemicals Analysis(BS EN 1122, BS EN ISO 3071, DIN 54231,LFGB § 64 BVL B 82.02.9, JIS)Waterproof Testing(ASTMD2099, SATRA)Washability Testing(SATRA)Flammability Testing(SATRA)If you have any further question, please feel free contact usor visit our website. 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. 

Leather and Footwear Testing

From wallets, handbags, and backpacks to luggage, the design and purpose of these articles is to safely hold our valuables and personal items. To ensure that these products met their intended purposes, bags and luggage testing is essential in meeting consumer products expectations as well as ensuring compliance with safety standards and requirements.  STC’s comprehensive bag and luggage testing services can assist manufacturers and retailers in meeting consumer expectations through extensive product performance testing such strength and durability, the functionality of zippers, straps, buckles, handles, wheels, fastenings etc., as well as the overall product quality and safety.  Our Bags, Luggage &amp; Accessories Testing services include: Physical Performance Testing Durability TestingRolling Testing(SATRA)Drop Testing(SATRA)WaterResistance(AATCC 22, 35)Static &amp; Dynamic Loading Testing(SATRA)Hazardous Chemicals Analysis(EN 14362, LFGB § 64 BVL B 82.02.9, DIN 54231,BS EN ISO 14184-1, BS EN ISO 3071, BS EN 1122)Accessories Spectacle &amp; Sunglasses Testing(ISO 12312, ISO 12870)Button Performance Testing(ATSM F963, EN 71, ISO 8124-1, GB 6675)Zipper Performance Testing(BS 3084)Belt Performance Testing(SATRA)Corrosion Resistance Testing(ASTM B117, ISO 9227)If you have any further question, please feel free contact us or visit our website. 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. 

Bags, Luggage and Accessories Testing

The Hong Kong Standards and Testing Centre provide a full range of professional testing, inspections and certification services according to your own specifications or major international standards. Testing services on product categories: Chemical, Food &amp; Pharmaceutical ProductsTextiles, Footwear, Furniture &amp; MaterialsElectrical ProductsToys &amp; Children's ProductsMedical DevicesCertification related testing and supporting services: China Compulsory Certification (CCC)Europe CE MarkGCC G-MarkHong Kong OFCA CertificationHong Kong Safety MarkJapan Safe Goods (SG) MarkJapan ST MarkJapan PSE MarkUS CPSIA CertificationUS FCC sDoCWe also provide a wide variety of inspection services for major consumer products including garment, toys, bag, footwear, electrical, electronic, watch and clock and sundry products. We also provide factory evaluation and audit services, such as Code of Conduct, Social Audit and LaboratoryAudit.  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. 

Testing Inspection Certification Service

TUV Rheinland HK Ltd

  This toys, childcare products and chemicals testing service is especially designed and offered to toy manufacturers. The professionals are experienced and offer added efficiency. This testing service&nbsp;aims&nbsp;at protecting our beloved children.    
 
   Reliable and effective.    
   With excellent after-sales supports.  
 

Product and Chemical Testing Service

V-Trust Inspection Service Co., Ltd

Our labs are fully accredited by CNAS, CPSC, CMA, CBTL, ILAC-MRA, FCC, and many more qualifications, and our testing reports are recognized worldwide. We could help clients to arrange 360 °C evaluation testing to distinguish their products in the crowded market, including below testing scopes:  Product Compliance Testing: Food Contact Materials: LFGB, DGCCRF, EC1935/2004 (EU), FDA, etc. Electronics &amp; Electrical appliances: RoHS, LVD, EMC, FCC, RED, etc. Toys &amp; Juvenile products: EN71, ASTM F963, CPSIA, CPC, etc. Harmful substances: REACH, POPs, California 65, PFAS, etc.  Product Evaluation Testing Material composition analysis: Identify the material &amp; the elemental makeup. Samples comparison: Compare &amp; test products carefully and help to select the right products. Performance testing: Evaluate product quality and safety. Tailor-made testing: salt spray test, burning test, lifetime, etc.  Working with us in testing &amp; certifications brings you the following benefits： √ Accreditation by All Major Markets including Europe, North &amp; South America. √ Distinguish your brands in the crowded market. √ Ensure your products confirm to the latest international standard. √ Well-edited testing photos and videos to highlight your unique selling points. √ Free Sample Picking, One-Stop Service from Lab Testing to On-Site Inspection. 

Sample Check / Product Compliance Testing / Certification / Chemical Analysis / Product Comparison Test

STC’s food science experts have been assisting many government departments, food manufacturers, processors, hotels, restaurants, catering service centers and fast food chains meet regulatory market requirements and address consumer safety concerns.  Food Nutrition Analysis and Nutrition Labeling Hong Kong 1+7 Nutrition Label(CFS)China Nutrition Label(GB 28050)Australia Nutrition Label(FSANZ)USA Nutrition Label(FDA)Canada Nutrition Label(Health Canada)EU Nutrition Label Regulation(EU No. 1169/2011) Food Product Safety Testing Heavy Metals Adulterants(HK Food Regulation: Sb, As, Cd, Cr, Pb, Hg, Sn)Pesticide Residues(e.g. fipronil, organochlorine, organophosphorus, etc.)Harmful Chemicals in Food(e.g. melamine, phthalates, aflatoxins, biotoxins, etc.)Animal Drug ResiduesFood Additives Artificial Coloring MatterArtificial SweetenerPreservativesProhibited Additives(e.g. sudan red, formaldehydes, boric acid, salicylic acid, etc.)Shelf Life Study STC provides real time and accelerated shelf life study to assist food manufacturers in evaluating and verifying product ‘use by’ or ’best before’ date(s) for compliance to statutory or commercial requirements.Physical, chemical and microbiological processes are critical factors altering the quality and safety of food.Parameters below could help monitor the composition of food products: Food Quality Testing(e.g. moisture content, water activity, fat rancidity, etc.)Chemical Properties(e.g. peroxide value, pH, acidity levels, etc.)Pharmaceutical Adulterants ScreeningMicrobiological Analysis (e.g. food-borne micro-organisms, total viable count, Enterobacteriaceae, etc.)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contactTo 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. 

Food Quality Testing & Food Nutrition Analysis

Phthalates content is limited in different countries or regions                    Following phthalates are limited:  Diisobutyl Phthalate (DIBP)Dibutyl Phthalate (DBP)Benzyl Butyl Phthalate (BBP)Bis(2-ethylhexyl) Phthalate (DEHP)Di-isononyl Phthalate (DINP)Di-isodecyl Phthalate (DIDP)Di-n-octyl Phthalate (DNOP)Dimethyl Phthalate (DMP)Diethyl Phthalate (DEP)Di-n-hexyl Phthalate (DNHP/DHEXP)Di-n-pentyl Phthalate (DPENP)Dicyclohexyl Phthalate (DCHP)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/services/detail/toys 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. 

Toy Phthalates Testing

Sample Check / Sample Evaluation / Product Compliance Testing / Certification / Chemical Analysis / Product Comparison Test

We offer professional gift and premium testing services for customers. We have regular services and priority services for your selection. We use high-quality equipment to test and offer precision results. Regular services: 8-10 working days for microbiological and chemical testing.Priority services: 3 working days.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. 

Gift and Premium Testing

At STC, we provide a series of extensive textile and apparel testing services for all kinds of fabrics and apparel from qualitative physical performance testing to harmful substance content detection. Our professional staffs and extensive experience in the textile and apparel testing industry ensures that we provide the most accurate, reliable and confidential services in accordance to national and international standards.  Fibre Content Analysis Qualitative AnalysisQuantitative AnalysisColorfastness Testing WashingRubbing / CrockingPerspirationDry CleaningLight Physical Testing &amp; Performance Evaluation Tearing StrengthBursting StrengthSeam Properties Other Apparel &amp; Textile Testing Services Dimensional Stability &amp; Appearance after CleaningFlammability TestingHazardous Chemicals AnalysisCare Label Verification &amp; RecommendationScanning Electron Microscopy (SEM)Instrumental Colour MeasurementAdvice &amp; Support on Product ImprovementIf you have any further question, please feel free contact us or visit our website. 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. 

Apparel and Textile Testing

Children's Jewelry Testing STC is offering comprehensive Children's Jewelry testing to ensure product safety and quality. As excess content of heavy metal may trigger contact allergies and dermatitis, children's jewelry and accessories, such as bracelets, earrings, necklaces, and rings, must comply with Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) chemical regulations for nickel release, lead, cadmium and phthalates to be marketed in the EU.  Those intended for markets in the United States must comply with chemical limits set forth by the U.S. Consumer Product Safety Improvement Act (CPSIA), American Society for Testing and Materials (ASTM) F2923 and California's Proposition 65.  Children's Jewelry Testing services include: Total Lead ContentTotal Cadmium ContentNickel ReleaseHeavy Metal TestingPhthalatesPhysical Testing (tension, torque, flammability, sharp point, sharp edge, small parts, etc.)Country Europe (EN71-3, EN1811, EN12471 &amp; EN12472, REACH)USA (CPSIA, ASTM F2923 &amp; ASTM E1613, California’s Proposition 65)China (GB 28480)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/services/detail/children-jewelry 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. 

Children Jewelry Testing

Hohenstein Laboratories (HK) Limited

Hohenstein, founded in 1946, as an internationally recognised test laboratory, has specialised for 79 years in testing, certification and research of softlines and hardlines products. Our labs in Hong Kong and Shanghai are a state-of-the-art and in line with our Headquarters in Germany. Our expert team in Greater China provides a wide range of tests and reliable customised services for your products at competitive prices. As an internationally accredited textile testing laboratory, the Hohenstein Greater China Laboratory can conduct testing services on harmful substances, quality, functionality and safety of textiles in line with international standards like ISO, EN, DIN and CPSC. This enables local companies to get well-prepared to meet the diverse purchasing demands of global partners.As the founder and certification body of OEKO-TEX®, the Hohenstein Greater China Laboratory can offer OEKO-TEX® pre - testing services for domestic clients. It can also tailor testing schemes as per product types and buyer requirements. This helps enterprises obtain test reports in short cycles, respond swiftly to downstream demands and reduce subsequent certification costs.Our textile testing determines conformity with legal requirements, standards, international specifications and internal quality guidelines. Textile technology testing Quality testing (colour fastness, fibre fineness, dimensional stability, strength of fabrics)Performance testing (such as water resistance, waterproofness, breathability/permeability to air, pilling, washing tests, etc.)Determination of fibre composition (Textile Labelling Act)Testing for chemicals and harmful substances Validation of legal conformity and product requirements that go beyond statutory needs (such as testing for harmful substances according to REACH, CPSIA and individual RSLs)Wastewater and sludge testing according to individual requirements (ZDHC, OEKO-TEX®, Greenpeace)Preparation of expert reports in the case of claimsOEKO-TEX® certificationTextile labelling and fibre composition Determining the qualitative and quantitative attributes of yarns and fabrics is crucial if you want to identify materials correctly in accordance with EU textile labelling directives.We identify fibres and determine their properties in three ways – by using microscopes, mechanical testing or chemical testing. You can scan the QR code below to follow Hohenstein’s official account for business inquiries，thanks you. 

Textile Technology and Chemical Testing

Hong Kong Standards and Testing Centre (STC) conduct chemical properties tests for the toy industry. Our high precision equipment and skilled workers ensure professional testing service. STC offers worldwide accreditation including CNAS, DAkkS, HOKLAS, JTA, JMHW and CPSC. 	 Professional service. 	 Widely recognized accreditation.  

Toy Safety-Chemical Property

Accreditation: HOKLAS, DAkkS, SASO, CNAS, CCC, HKSI, CE, FCC, Japan Food Sanitation Law, GTTR, HKQAA &amp; ST MARK. Age grading assessment.Aging and pre-conditioning.Bacteriological testing.Chemical analysis.Electrical toy safety testing.Electro magnetic compatibility.Flammability testing.Food contact article analysis.Helmet and bicycle testing.Material and product evaluation.Packaging assessment.Performance and reliability testing.Physical and mechanical testing.Transportation testing.Babies dummies and bottle teats.Baby walking frames.Child safety barriers.Children's cots.Children's high chairs.Playpens.Sunglasses.Wheeled child conveyance and strollers.Writing instruments and stationeries.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. 

Toys and Children's Products Testing

Water is the essence of life and we place great emphasis on the quality of water through STC extensive water quality testing services. Acquiring HOKLAS accreditation for tap water, drinking water, cooling tower water testing and more, our environmental analysis team can identify chemical, physical and microbiological parameters with reference to WHO, BP and GB standards to ensure safety compliance.  Additionally, the emission of hazardous substances into the air such as volatile organic compounds (VOCs) and formaldehyde have also become an increasing concern for public health. STC’s experienced chemists and state-of-the-art VOCs chambers can access and detect even trace amounts of hazardous substances in building materials, furniture, and home decorations.  Our Environmental Surveillance &amp; Analysis services include: Drinking Water Heavy metal analysis(e.g. lead, cadmium, chromium, nickel, copper, antimony, etc.)WHO standards, WSD Circular LetterPurified water in containers(BP 2017, GB 5749, GB 8537, FDA, etc.)Water Filter Performance TestingRadioactivityGuidelines for Drinking Water Quality(2007 ed.)Purified Water Water for Analytical Laboratory Use(ISO 3696)Quality Water Supply Schemes for Buildings–Fresh Water (Plus) Chemical and Microbial testing(e.g. iron, colour, conductivity, pH value, turbidity; coliform organisms, E. coli)Heavy metals(e.g. lead, cadmium, chromium, nickel)Guidelines on Cleansing &amp; Disinfection of Fresh Water Inside Service Chemical testing(e.g. colour, conductivity, pH value, turbidity, free residual chlorine)Microbial testing(e.g. count of E. coli, heterotrophic plate count)Waste Water &amp; Cooling Tower Water Chemical analysis(e.g. BOD5, COD, Odor, Oil and grease content, SV30, etc.)Metal content(e.g. lead, cadmium, chromium, nickel)Microbial testing(e.g. coliform organisms, E. coli, fecal coliforms, Heterotrophic plate count, Legionellapneumophila, etc.)Air Quality Microbial quality testing(e.g. particle count, airborne bacteria, yeast and mould count, etc.)Volatile Organic Compounds VOCs(e.g. dichloromethane, methylethyl ketone (MEK), toluene, benzene, etc.)Formaldehyde Compliance(ASTM D5582, ASTM D6007, ASTM E1333, CARB/EPA TSCA Title VI, EN717-3, EN120)Plastic Testing Identification and Conditioning testingChemical analysis(e.g. bis-phenol A, PAHs, phthalates, etc.)Metal Testing Alloy Composition TestingCorrosion Testing(e.g. salt spray, etc.)Nickel ReleaseMetal ImpurityIf 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. 

Environmental Analysis

Toy Safety Testing STC offers comprehensive testing services to ensure the safety and regulatory compliance for toys and children’s products entering the European market. Our European Toy Safety Testing services include:  The EU Toy Safety Directive 2009/48/EC All toys that are sold in the European Market must meet the standards set out in the EU Toy Safety Directive 2009/48/EC to ensure that the product is safe and fit for its purpose.  EN71 Testing EN71 Part 1 – Physical and Mechanical TestEN71 Part 2 – Flammability TestEN71 Part 3 – Migration of Toxic Elements TestEN71 Part 4 – Experimental Set for ChemistryEN71 Part 5 – Chemical Toys (Sets) Other than Experimental SetsEN71 Part 7 – Finger PaintsEN71 Part 8 – Swings, Slides &amp; Similar Activity Toys for Indoor &amp; Outdoor Family Domestic UseEN71 Part 9 – Organic Chemical CompoundsEN71 Part 12 – Nitrosamines &amp; Nitrosatable substancesEN71 Part 13 – Fragrances in Certain ToysEN71 Part 14 – Trampolines for Domestic UseIf you have any further question, please feel free contact us at enquiry@stc.group or visit our website: https://www.stc.group/en/services/detail/european-toy-safety 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. 

European Toy Testing EN71

Increased pressure on global resources, energy conservation and environmental protection has driven the consumer demand for eco-compatible, compostable and biodegradable products. Textile and footwear manufactures must not only ensure products safety for consumers but also consider environmental impacts and the benefits of environmentally friendly products.    STC can assist manufacturers in implementing essential safety and quality measures to ensure that products are free of harmful chemicals and that chemical restrictions of international markets are followed. As environmentally friendly products are becoming an integral part of global economic development, STC’s eco-textiles and biodegradable testing services can help manufacturers assure that products are not only safe for consumers but also safe for the environment as well.   Our Eco-textiles &amp; Biodegradability Testing services include: Eco-textile Testing Azo DyesAllergenic DyesCarcinogenic DyesDetermination of OdorsFlame RetardantsFormaldehydeHeavy Metal AnalysisOrganotin CompoundsPesticidespH ValuePhthalatesRelease of NickelBiodegradability Testing Anaerobic Biodegradation of Plastic Materials (ASTM D5511)Anaerobic Biodegradation &amp; Disintegration of Plastic(ISO 15985)Plastics Degradability (ASTM D6954)If you have any further question, please feel free contact us or visit our website.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. 

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