Special gases and electronic-grade gases supply: Complete range of purity grades, supporting export

Guaranteed Batch Consistency · Analytical COA Verification · Seamless Export

We eliminate supply-chain vulnerabilities with strict PPB-level trace impurity verification, lot-to-lot consistency guarantees, ISO/DOT certified cylinder packaging, and express lead-time coordination supporting cross-border industrial and electronic gas deliveries worldwide.

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99.9999%

Peak Purity (6N Electronic Grade)

≤ 1 ppb

Critical Impurity Control Threshold

19+

Years Gas Refilling & Export Experience

50+

Global Destination Countries Served

Purity Architecture

Standard Industrial Gases, High Purity, to 6N Electronic Grades

Our complete range of industrial gases, special gases, and electronic-grade specialty molecules provides chemical certainty for highly regulated manufacturing facilities.

Industrial Grade (99.5% – 99.9%)

Engineered for high-volume fabrication, plasma cutting, structural shielding, and large-scale synthesis where cost-effective reliability is paramount.

Core Gaseous FractionsOxygen, Nitrogen, Argon, CO2
Particulate LimitCleaned to ISO Class 8
Typical VesselSteel Cylinders, Quads, Dewars
Primary FocusReliable Delivery & Bulk Scale

High Purity & Calibration (4.5N – 5N)

Instrument-grade carriers, analytical baseline references, and specialized multi-component mixtures blended with gravimetric precision.

Assay Range99.995% to 99.999%
H2O / O2 Moisture Barrier< 2.0 ppm / < 1.0 ppm
Trace StabilityExtended 36-Month Certified Shelf Life
ApplicationGC-MS, Metrology, Lab Standards

Ultra-High Purity Electronic (5N5 – 6N)

Crucial for sub-micron semiconductor lithography, epitaxial wafer processing, photovoltaic doping, and thin-film passivation lines.

Assay Standards99.9995% – 99.9999%
Impurity ControlPart-per-billion (ppb) ceiling
Surface TreatmentElectropolished (EP) Ra < 0.25μm
ApplicationDiffusion, Etching, ALD, CVD

Chemical Inventory

Special Gases and Functional Gas Classification

A full-spectrum portfolio supporting critical process phases from crystal growth through plasma etching and deep submicron ion implantation.

Process Classification	Target Gas Molecules & Formulas	Critical Quality Focus
Fuel Gases	CH4 (Methane), C2H2 (Acetylene), CO (Carbon Monoxide)	Low heavy-hydrocarbon fractions, stable calorific delivery
Welding & Shielding Gases	Ar-He, Ar-H2, Ar-O2, Ar-CO2, CO2, O2, N2, H2, Ar-He-CO2, Ar-He-N2	Precise multi-component mixing ratios, zero moisture ingress
Liquid Gases & Halocarbons	C2H4, SO2, CO2, NO2, N2O, C3F6, H2S, HCl, BCl3, BF3, SF6	Corrosion-resistant packaging, low non-condensable phase gases
Calibration Gases	CH4-N2, NO-N2, H2S-N2, CO2-N2, SF6-N2, SiH4-He	NIST-traceable analytical certification, lot repeatability
Doping Gases	AsH3, PH3, GeH4, B2H6, AsCl3, AsF3, H2S, BF3, BCl3	Sub-ppm heavy metals, strict arsine/phosphine stoichiometry
Crystal Growth Feedstocks	SiH4, SiHCl3, SiCl4, B2H6, BCl3, AsH3, PH3, GeH4, Ar, He, H2	Ultra-low carbon and trace oxygen to prevent crystal lattice voids
Gas Phase Etching	Cl2, HCl, HF, HBr, SF6	Anhydrous purity guarantees (< 0.5 ppm H2O) to curb equipment wear
Plasma Etching	SiF4, CF4, C3F8, CHF3, C2F6, NF3, SF6, BCl3, N2, Ar, He	Minimal greenhouse perfluorocarbon variants, uniform etch selectivity
Ion Beam Etching	C3F8, CHF3, CClF3, CF4	High directional impact ion kinetics, low micro-particulate counts
Ion Implantation	AsF3, PF3, PH3, BF3, BCl3, SiF4, SF6, N2, H2	Vacuum cylinder compatibility, high thermal cross-sectional stability
CVD Precursors	SiH4, SiH2Cl2, SiCl4, NH3, NO, O2	Atomic Layer Deposition (ALD) grades, hyper-pure thin oxides
Carrier & Diluent Gases	N2, Ar, He, H2, CO2, N2O, O2	Bulk 6N integrity, zero trace oxygen and hydrocarbon pass-through

Analytical Integrity

Comprehensive Certificate of Analysis (COA) Verification

Every single batch produced across our 5,000-square-meter facility undergoes comprehensive chromatographic verification before releasing export paperwork.

Gas Chromatography (GC-PDHID)

Pulsed Discharge Helium Ionization Detectors scan for trace H2, O2, N2, CO, CO2, and light hydrocarbons down to fractional parts-per-billion levels.

Baseline Threshold< 0.1 ppb limit of detection
Analysis ScopePermanent Atmospheric Contaminants

Cavity Ring-Down Spectroscopy (CRDS)

Ultra-precise optical absorption cavities reveal exact trace moisture (H2O) and trace acid gas molecules, neutralizing corrosive process failure risks.

Moisture ValidationAbsolute reading down to < 1 ppb
Measurement TargetAnhydrous Corrosive & Specialty Gases

ICP-MS Heavy Metal Traces

Inductively Coupled Plasma Mass Spectrometry rigorously assays volatile metallic residues (Fe, Ni, Cr, Cu) ensuring crystalline defect prevention.

Defect ProtectionPrevents gate-oxide breakdown
Audited StandardsSEMI C3 Series Compliance

Packaging Engineering

Cylinders, Tube Trailers & ISO Tank Containers

From single experimental high-pressure lecture bottles to high-throughput multi-ton tube trailers, each container is evacuated, baked, and passivated for pristine stability.

High purity specialty gas cylinder filling manifold and factory floor storage

Seamless High-Pressure Cylinders: 10L to 50L ISO/DOT cylinders equipped with DISS, CGA, or DIN ultra-clean valves, polished internal walls, and multi-layered passivation.

Special gas supply chain logistics, cylinder pallets and warehousing infrastructure

Cylinder Bundles & Tube Pallets: 12-to-64 cylinder manifold clusters for uninterrupted high-volume fab delivery, certified for rough ocean freight transit.

International quality management certification for industrial and electronic gas export

Certified ISO Tank Containers & Y-Cylinders: Bulk tonnage transport for corrosive halocarbons, high-purity silane, and cryogenic liquids (O2, Ar, N2, CO2).

Export Assurance

Global Dangerous Goods (DG) Regulatory Compliance

Exporting compressed gases, pyrophoric compounds, and toxic etching reagents requires flawless maritime clearance documentation. We manage customs compliance from start to finish.

GHS-Compliant SDS

Fully compliant Safety Data Sheets customized by language, region, and international maritime code (IMDG/IATA).

Pressure Vessel Testing

TPED/DOT hydrostatic test records, ultrasonic flaw assessments, and mandatory tare weight re-verification files.

Dangerous Goods DGD

Certified packaging classification, DG declarations, UN tank approval certificates, and port terminal approvals.

Tariff & Origin Clearance

Customs export licenses, Certificate of Origin (CO, Form E, Form F), and HS classification accuracy.

Who We Are · Legacy Since 2002

19+ Years of Industrial Gas Manufacturing Leadership

Chengdu, Sichuan, the historical birthplace of the ancient "Shu" Civilization and home to the sacred sun bird artifact, has long represented a fertile land enriched with deep natural gas deposits. It is from this foundation that Taiyu Gas (TYQT / HongJin Gas) was founded in 2002, standing atop the industry with a commitment to providing clean, dependable "gas blood" to world industrial markets.

Over nineteen continuous years of enterprise expansion, our direct R&D engineering unit has grown to more than 100 professionals, maintaining a specialized production facility covering 5,000 square meters. Anchored by the corporate ethos of being Pragmatic, Upright, Enterprising, and Altruistic, we serve semiconductor leaders, advanced research academies, and mega-scale industrial operations worldwide under the mission: Buy Gas Easy.

Our core operating paradigm combines domestic trade services, secured logistics storage, and overseas trade expansion to give our clients end-to-end peace of mind across refilling, gas trace analysis, application system design, and specialized dangerous goods shipping.

Chengdu CBD international trade sales office

Chengdu Oxygen Gas Plant 5-floor administrative headquarters

Taiyu Gas international export operations team

Special gases professional logistics group

Integrated Headquarters in Chengdu Longquanyi District · International Commerce Branch · Certified Quality Control Personnel

Taiyu Gas sales team meeting Mount Fuji celebration

Taiyu Hongjin Gas corporate development event

Technical FAQ

Procurement & Technical Verification FAQ

Clear, direct answers concerning quality assurance, batch limits, shipping logistics, and customs validation.

How is gas purity verified and traced before shipment?

Every production batch undergoes analytical certification in our on-site ISO/IEC-standardized testing center. Using Gas Chromatography equipped with PDHID and TCD detectors, Cavity Ring-Down Spectroscopy (CRDS), and trace moisture/oxygen analyzers, we benchmark every contaminant molecule against National Metrology Standards. An individualized Certificate of Analysis (COA) specifying exact trace PPM/PPB impurity values accompanies every cylinder serial number.

What is the tolerance range for batch-to-batch purity fluctuations?

For electronic-grade special gases (5N5 to 6N), purity variance across production runs is constrained within ±0.0001% of the certified assay, with critical baseline impurities (H2O, O2, CO, CO2, and total hydrocarbons) strictly held under 1.0 ppm or below agreed-upon contract ceilings. For multi-component calibration gases, our gravimetric blending achieves a preparation tolerance of ±1% to ±2% with analytical relative uncertainties under 1%.

What is your Minimum Order Quantity (MOQ) for international orders?

Our flexible infrastructure adapts to varied demand scales. For rare specialty gases and noble gases (Xenon, Krypton, Neon, Germanium mixtures), we accept orders starting from a single cylinder (10L to 47L). For commoditized industrial gases and standard high-purity variants (Argon, Nitrogen, Helium, Carbon Dioxide), our standard export batch begins at one full pallet / cylinder bundle (12–16 cylinders) or 20-foot Dangerous Goods (DG) shipping container equivalents.

What regulatory documents are needed to export hazardous gases to my country?

International shipping of compressed, liquefied, and reactive gases requires rigorous documentation. We prepare and supply: (1) 16-section regional GHS-compliant Safety Data Sheets (SDS), (2) IMO Dangerous Goods Declarations (DGD), (3) Batch-specific Certificates of Analysis (COA), (4) Pressure vessel hydrostatic and DOT/TPED conformity certificates, (5) Certificate of Origin, and (6) Commercial Invoices and Packing Lists mapped directly to international HS Codes. We coordinate directly with your appointed maritime freight forwarders or handle delivery via DAP/CIF terms.

Fast Global Logistics

Submit Gas Specifications & Destination Country for an Immediate Quote

Connect directly with our chemical engineering and export dispatch team. Receive tailored CIF/FOB pricing, real-time cylinder availability, analytical batch COA samples, and full international freight logistics schedules within 24 hours.

&check; 24-Hour Fast Turnaround &check; Direct Factory Pricing &check; Certified Quality Records

Special Gases and Electronic-Grade Gases Supply