Welcron is an industrial fiber specialist established in 1992, engaged in living businesses such as microfiber cleaners and functional bedding, advanced material businesses based on nanofiber and superfiber, and defense, firefighting, and energy plant businesses. The company leads the advanced material industry by developing various high-value-added products like high-efficiency filters, artificial blood vessels, and bulletproof vests through its unique microfiber technology and continuous R&D. Welcron targets the global market by focusing on water, energy, environment, and health as core growth engines. Through its affiliate Welcron Hantec, it also conducts industrial plant and general construction businesses, operating as a comprehensive group.Welcronisanindustrialfiberspecialistestablishedin1992,engagedinlivingbusinessessuchasmicrofibercleanersandfunctionalbedding,advancedmaterialbusinessesbasedonnanofiberandsuperfiber,anddefense,firefighting,andenergyplantbusinesses.Thecompanyleadstheadvancedmaterialindustrybydevelopingvarioushigh-value-addedproductslikehigh-efficiencyfilters,artificialbloodvessels,andbulletproofveststhroughitsuniquemicrofibertechnologyandcontinuousR&D.Welcrontargetstheglobalmarketbyfocusingonwater,energy,environment,andhealthascoregrowthengines.ThroughitsaffiliateWelcronHantec,italsoconductsindustrialplantandgeneralconstructionbusinesses,operatingasacomprehensivegroup.
Key Products/TechnologiesKeyProducts/Technologies
Living and Cleaner Business: High-performance microfiber cleaners, eco-friendly microfiber cleaners, household, automotive, and industrial microfiber products, allergy-care functional bedding (SESA, SESA Living, Allertect, etc.), cooling bedding (Ice Bedding), far-infrared and antibacterial functional bedding.LivingandCleanerBusiness:High-performancemicrofibercleaners,eco-friendlymicrofibercleaners,household,automotive,andindustrialmicrofiberproducts,allergy-carefunctionalbedding(SESA,SESALiving,Allertect,etc.),coolingbedding(IceBedding),far-infraredandantibacterialfunctionalbedding.
Material Business: Nanofiber production technology at 800nm level, high-efficiency MB filters, medical ePTFE tubes, artificial blood vessels for stents, superabsorbent composite knit fabrics, moisture-transfer functional fabrics (Aquatrans), ultra-fine microfiber wipers for high-cleanliness cleanrooms. Possesses technology for the world's first nanofiber ULPA filter material development.MaterialBusiness:Nanofiberproductiontechnologyat800nmlevel,high-efficiencyMBfilters,medicalePTFEtubes,artificialbloodvesselsforstents,superabsorbentcompositeknitfabrics,moisture-transferfunctionalfabrics(Aquatrans),ultra-finemicrofiberwipersforhigh-cleanlinesscleanrooms.Possessestechnologyfortheworld'sfirstnanofiberULPAfiltermaterialdevelopment.
Defense and Firefighting Business: Bulletproof plates meeting NIJ international performance standard Level 4, lightweight bulletproof vests (3.4kg), stab-proof vests, bulletproof helmets, bulletproof bags, and defense system development, stab-proof buoyancy vests.DefenseandFirefightingBusiness:BulletproofplatesmeetingNIJinternationalperformancestandardLevel4,lightweightbulletproofvests(3.4kg),stab-proofvests,bulletproofhelmets,bulletproofbags,anddefensesystemdevelopment,stab-proofbuoyancyvests.
Energy Plant Business: Water tube boilers, hot water boilers, Sulfur Recovery Units (SRU), hot oil heaters, waste heat recovery boilers, HRSG, biomass-fired boilers, and new renewable energy projects. The SRU is a core facility for recovering high-purity sulfur from toxic waste gases during crude oil and natural gas refining processes.EnergyPlantBusiness:Watertubeboilers,hotwaterboilers,SulfurRecoveryUnits(SRU),hotoilheaters,wasteheatrecoveryboilers,HRSG,biomass-firedboilers,andnewrenewableenergyprojects.TheSRUisacorefacilityforrecoveringhigh-puritysulfurfromtoxicwastegasesduringcrudeoilandnaturalgasrefiningprocesses.
Wastewater Treatment Facilities: Anaerobic microorganism-based COD removal and methane gas recovery systems (ICX, UASB Plus), biological reactor-based hydrogen sulfide removal and sulfur recycling facilities. Supplies high-concentration wastewater treatment facilities through a technical partnership with Paques, a global wastewater treatment company in the Netherlands.WastewaterTreatmentFacilities:Anaerobicmicroorganism-basedCODremovalandmethanegasrecoverysystems(ICX,UASBPlus),biologicalreactor-basedhydrogensulfideremovalandsulfurrecyclingfacilities.Supplieshigh-concentrationwastewatertreatmentfacilitiesthroughatechnicalpartnershipwithPaques,aglobalwastewatertreatmentcompanyintheNetherlands.
Core AdvantagesCoreAdvantages
Unique Microfiber Technology and Market Leadership: Pioneered the domestic microfiber cleaner market and achieved the world's No. 1 market share, securing global competitiveness through exports to over 50 countries.UniqueMicrofiberTechnologyandMarketLeadership:Pioneeredthedomesticmicrofibercleanermarketandachievedtheworld'sNo.1marketshare,securingglobalcompetitivenessthroughexportstoover50countries.
Advanced Material R&D Capabilities: Development of next-generation fiber materials such as nanofibers, superfibers, and eco-friendly fibers, and technological superiority through application in high-efficiency filters, artificial blood vessels, and defense sectors.AdvancedMaterialR&DCapabilities:Developmentofnext-generationfibermaterialssuchasnanofibers,superfibers,andeco-friendlyfibers,andtechnologicalsuperioritythroughapplicationinhigh-efficiencyfilters,artificialbloodvessels,anddefensesectors.
Dominance in the Domestic Defense Sector: No. 1 market share and production capacity in domestic bulletproof plates, ability to produce NIJ highest performance Level 4 products, and high reliability through supplying over 300,000 bulletproof plates to the Korean military.DominanceintheDomesticDefenseSector:No.1marketshareandproductioncapacityindomesticbulletproofplates,abilitytoproduceNIJhighestperformanceLevel4products,andhighreliabilitythroughsupplyingover300,000bulletproofplatestotheKoreanmilitary.
Diversified Business Portfolio: A stable business structure encompassing various business areas including living, cleaners, advanced materials, defense, and energy plants.DiversifiedBusinessPortfolio:Astablebusinessstructureencompassingvariousbusinessareasincludingliving,cleaners,advancedmaterials,defense,andenergyplants.
Energy Plant Technology Competitiveness: Possesses competitiveness in highly technical areas such as modular delivery of industrial boilers. Holds unique sulfur recovery unit technology in Asia.EnergyPlantTechnologyCompetitiveness:Possessescompetitivenessinhighlytechnicalareassuchasmodulardeliveryofindustrialboilers.HoldsuniquesulfurrecoveryunittechnologyinAsia.
Development of Eco-friendly and Functional Products: Market differentiation through the development of eco-friendly and high-functional products such as PET bottle recycled cleaners, corn-based biodegradable cleaners, and cooling bedding.DevelopmentofEco-friendlyandFunctionalProducts:Marketdifferentiationthroughthedevelopmentofeco-friendlyandhigh-functionalproductssuchasPETbottlerecycledcleaners,corn-basedbiodegradablecleaners,andcoolingbedding.
Medical and Bio Industry: Artificial blood vessels, medical ePTFE tubes, biomaterials.MedicalandBioIndustry:Artificialbloodvessels,medicalePTFEtubes,biomaterials.
Petrochemical and Energy Plant Industry: Industrial boilers, sulfur recovery units, waste heat recovery boilers, HRSG, biomass power generation facilities.PetrochemicalandEnergyPlantIndustry:Industrialboilers,sulfurrecoveryunits,wasteheatrecoveryboilers,HRSG,biomasspowergenerationfacilities.
Environmental Industry: High-efficiency filters, wastewater treatment facilities, water reuse systems.EnvironmentalIndustry:High-efficiencyfilters,wastewatertreatmentfacilities,waterreusesystems.
Food and Pharmaceutical Industry: Food and pharmaceutical production facilities, food/beverage and bio plants.FoodandPharmaceuticalIndustry:Foodandpharmaceuticalproductionfacilities,food/beverageandbioplants.
Major MarketsMajorMarkets
Kuwait, Saudi Arabia, China, Uzbekistan, Malaysia, VietnamKuwait,SaudiArabia,China,Uzbekistan,Malaysia,Vietnam
Germany, France, Netherlands, SpainGermany,France,Netherlands,Spain
United StatesUnitedStates
Certifications/PatentsCertifications/Patents
Holds over 30 domestic and international patents in the microfiber field.Holdsover30domesticandinternationalpatentsinthemicrofiberfield.
Holds 22 domestic and international patents related to nanofiber and microfiber manufacturing technology.Holds22domesticandinternationalpatentsrelatedtonanofiberandmicrofibermanufacturingtechnology.
Possesses 33 registered patents out of 52 filed patents (as of November 2025).Possesses33registeredpatentsoutof52filedpatents(asofNovember2025).
FDA certification for human harmlessness and safety (microfiber cleaner).FDAcertificationforhumanharmlessnessandsafety(microfibercleaner).
Inno-Biz certification.Inno-Bizcertification.
4 consecutive re-certifications for Consumer Centered Management (CCM).4consecutivere-certificationsforConsumerCenteredManagement(CCM).
Selected as a World-Class Product (microfiber cleaner, 20 consecutive years since 2001).SelectedasaWorld-ClassProduct(microfibercleaner,20consecutiveyearssince2001).
Awarded the Korea Textile Material Quality Grand Prize.AwardedtheKoreaTextileMaterialQualityGrandPrize.
Patent title: Knitting structure of a cooling triple-ply circular knit fabric with improved breathability (2024).Patenttitle:Knittingstructureofacoolingtriple-plycircularknitfabricwithimprovedbreathability(2024).
Patent title: Artificial blood vessel and manufacturing method using heat-shrinkable tube (2020).Patenttitle:Artificialbloodvesselandmanufacturingmethodusingheat-shrinkabletube(2020).
Patent title: Method for manufacturing non-woven fabric sheets using Tencel fiber and milk protein fiber (2017).Patenttitle:Methodformanufacturingnon-wovenfabricsheetsusingTencelfiberandmilkproteinfiber(2017).
Patent title: Pillow for improving snoring (2017).Patenttitle:Pillowforimprovingsnoring(2017).
Developed lightweight stab-proof vests using high-density aramid fabric and inorganic particle surface treatment technology.Developedlightweightstab-proofvestsusinghigh-densityaramidfabricandinorganicparticlesurfacetreatmenttechnology.
Jointly acquired original patent for reverse osmosis seawater desalination process and obtained environmental new technology certification through the development of high-efficiency ceramic membrane filtration pre-treatment process (Welcron Hantec).Jointlyacquiredoriginalpatentforreverseosmosisseawaterdesalinationprocessandobtainedenvironmentalnewtechnologycertificationthroughthedevelopmentofhigh-efficiencyceramicmembranefiltrationpre-treatmentprocess(WelcronHantec).