THPS: Common Difficulties Encountered by Buyers During Procurement & HiSiaddi’s Solutions

As a new-type foreign trade service provider driven by both technology commercialization and foreign trade services, HiSiaddi has built a "1+2+3+4=1" service system and can supply THPS from multiple well-known original manufacturers. As a R&D-focused foreign trade enterprise, we systematically sort out common challenges faced by B-end buyers sourcing THPS in China and propose targeted solutions from a professional perspective.

If you require more professional and in-depth analysis regarding THPS procurement, please contact HiSiaddi customer service.

I. Leading Enterprises in European & American Industrial Circulating Water Treatment, Oilfield Biocides, Leather Mildew Prevention & Paper Preservation

(I) Core Difficulties: Stringent Multi-Country Regulatory Compliance + Strict Control of Active Content & System Stability + Challenges in Bulk Supply Chain Guarantee & Cost Control

1.

Graded compliance control with differentiated regulatory access requirements The 75% aqueous THPS is subdivided into water treatment grade, oilfield auxiliary grade and leather preservation grade. The EU enforces BPR biocide regulations, REACH and SVHC control; the US implements EPA biocide registration standards. Strict limits apply to THPS active content, pH, specific gravity, free formaldehyde, sulfate radicals, heavy metals, insoluble matter and chroma. English COA, SDS and certificates of origin are issued for each batch. Large manufacturers audit production qualifications and BPR pre-registration documents; cargo detention at customs or termination of cooperation occurs directly if indicators fail or certifications are incomplete.

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Fluctuating indicators undermine bactericidal efficacy and compatibility stability Low active content or excessive free formaldehyde leads to inadequate algae and bacteria removal in circulating water and slime buildup in pipelines; oilfield reinjection water systems experience stratification and demulsification alongside equipment corrosion. THPS decomposes rapidly under strong alkaline conditions, chroma deepens during high-temperature storage and transportation, and active content declines. Physical property deterioration during cross-ocean temperature-variable shipping may result in scrapped bulk formulated chemicals for downstream clients.

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Restricted supply of hazardous raw materials (formaldehyde, phosphorus trichloride) with cost volatility driven by environmental production limits Raw materials are classified as fine hazardous chemicals. Domestic environmental production restrictions and raw material equipment maintenance directly drive up costs. Europe and America have scarce local production capacity and rely heavily on domestic Chinese factories for supply. Standard sea freight plus customs clearance takes 5–7 weeks. Demand surges during peak seasons for water treatment infrastructure and oilfield stockpiling, triggering raw material price hikes of 20%–35%. Classified as corrosive liquid chemicals, THPS faces tight hazardous goods shipping space and strict port inspections, easily triggering production line shutdowns due to material shortages.

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(II) Targeted Solutions

1.

Graded full compliance documents for one-stop customs clearance and filing Production is segmented by application grade, with complete supporting REACH, BPR pre-registration and EPA testing materials. English COA/SDS documents are issued on demand, with parameters aligned to European and American national standards. We assist clients with import filing and on-site factory audits.

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Low-temperature closed catalytic synthesis + precision concentration processes to lock core indicators Closed-loop low-temperature addition synthesis and precise temperature-controlled concentration stabilize active content at 75%. Third-party SGS sampling inspections are conducted before delivery, maintaining active ingredient and free formaldehyde levels within narrow ranges. Light-shielded sealed IBC totes and 25L plastic drums are filled with heat insulation and alkali penetration prevention to avoid decomposition and discoloration during sea transit.

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Long-term price-locking agreements + safety stock in European bonded warehouses 12-month annual supply long-term contracts lock base prices with annual price adjustments capped at 5%. Safety stock equivalent to 2–3 months of demand is maintained at bonded warehouses in core European ports. Standard orders are delivered locally within 3–5 working days; emergency oilfield/water treatment orders can be airfreighted for 48-hour delivery with full compliance.

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II. Small & Medium-Sized Circulating Water, Leather Tannery & Paper Auxiliary Formulation Factories in Latin America, Southeast Asia & the Middle East

(I) Core Difficulties: High Procurement Costs + Lack of Application Technical Support + Small Order Premiums & Widespread Adulterated Goods

1.

Surcharges for small-batch procurement with inflated costs from multi-layered middlemen Small factories typically purchase 100–300kg per order, while the industry standard minimum order quantity is 500kg with a 10%–18% premium for small shipments. Markups from multiple middlemen erode profit margins amid raw material price hikes.

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Improper product selection and compatibility errors lead to high chemical loss from failed bactericidal performance Clients cannot distinguish refined water treatment grade from diluted adulterated industrial-grade products. Low-quality chemicals cause algae growth in water bodies after dosing. Failure to control dosing pH and incompatible formulations trigger rapid THPS decomposition under alkaline conditions, resulting in total chemical loss exceeding 8%.

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Widespread counterfeit products blended with water and cheap inorganic salts drastically reduce bactericidal capacity. Ocean shipping lead times reach 45–60 days, with small orders delayed an additional 2–3 weeks. Full advance payment requirements tie up working capital.

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(II) Targeted Solutions

1.

Factory direct supply with no small-order premiums starting at 100kg Minimum order threshold lowered to 100kg at factory direct pricing; volume discounts apply for orders ≥500kg, with an additional 4% price reduction for orders above 1 ton. Direct factory supply eliminates middlemen, cutting procurement costs by over 20%.

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Free 1–2kg trial samples + full English technical manuals Supporting documentation includes dosing rates, applicable pH ranges and compatibility restrictions. Remote formulation adjustments reduce production chemical loss to under 3%.

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Consolidated regional container shipments + flexible settlement + batch traceability Scattered orders are consolidated into full containers to cut lead times by 30–35 days. Each shipment includes third-party quality inspection reports and traceability codes to eliminate adulteration. Flexible settlement terms of 30% advance payment + 70% against copy of bill of lading ease capital pressure.

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III. Premium Closed Pure Water Systems, Eco-Friendly Chrome-Free Leather Preservation & Green Oilfield Auxiliary Brand Suppliers (Europe, America, Australia)

(I) Core Difficulties: Strict Low-Formaldehyde & Low-Impurity Environmental Standards + Difficult Control of Formulation Stability at Low Dosage + High Frequency of Custom Trial Orders

1.

Strict limits on free formaldehyde and heavy metals for clean environmental applications Eco-friendly product specifications impose tight controls on free formaldehyde and heavy metal residues. Standard diluted counterfeit products fail EU BPR and drinking water safety testing and are excluded from high-end supply chains.

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Trace impurities under low-dosing conditions accelerate chemical failure and water yellowing At low addition rates, trace impurities shorten bacteriostatic duration, and long-distance high-temperature transportation accelerates active ingredient degradation.

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Rapid iteration of eco-friendly new formulations requires frequent 5–20kg trial batches with mismatched mass production scheduling for small test orders.

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(II) Targeted Solutions

1.

Ultra-low formaldehyde high-purity refined grades compliant with environmental access standards Post-synthesis deep aldehyde removal refining technology delivers free formaldehyde levels far below EU limits, supported by dedicated environmental testing reports.

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Formulation stability modification for enhanced temperature and alkali resistance with long-term bacteriostasis Modified formulations feature widened acid-alkali tolerance ranges, resisting decomposition at low dosing and extending finished chemical shelf life.

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Custom trial batches starting at 5kg with priority scheduling on R&D dedicated production lines Customizable active content and free formaldehyde specifications to support overseas laboratory formulation testing.

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IV. Large Global Formulated Water Treatment Biocide & Composite Leather Preservative Raw Material Manufacturers

(I) Core Difficulties: Hard-to-Control Compatibility Stability in Formulations + Rapid Decomposition Under Strong Alkaline Conditions + Heavy Bulk Continuous Supply Pressure

1.

Rapid degradation when blended with quaternary ammonium salts, inorganic salts and alkaline auxiliaries Low-quality THPS decomposes quickly when mixed with alkaline formulation raw materials, rendering entire batches of formulated preservative biocides ineffective.

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Improper pH adjustment during formulation triggers localized alkalinity and active ingredient loss.

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Ten-thousand-ton centralized procurement faces profit compression from raw material price fluctuations; production shutdowns from supply shortages incur substantial losses, with compatibility requirements for automated filling lines.

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(II) Targeted Solutions

1.

Alkali-resistant modified grades optimized for formulation compatibility Compatibility testing is performed for water treatment and leather formulation raw materials to maintain stable mixed systems without decomposition.

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Alkali-resistant modified grades + standardized pH adjustment guidance for workshops Standardized acid-base control operating procedures reduce processing chemical loss.

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Volume tiered pricing for large orders + annual supply guarantees + IBC/plastic drum industrial packaging Additional discounts for ton-scale bulk orders, annual long-term contracts lock production capacity to match automated filling production lines.

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V. Cross-Border Traders, Fine Chemical Sub-Packagers & Regional Preservative Biocide Distributors

(I) Core Difficulties: High Inventory Pressure for Multi-Grade Stock + No In-House Testing for Liquid Active Content + Leakage & Degradation Risks During Corrosive Hazardous Goods Storage & Transportation

1. Multi-specification inventory requirements for water treatment/oilfield/leather grades with high minimum order quantities tie up working capital.

2. Lack of laboratory testing equipment prevents on-site verification of active content; adulterated diluted THPS supplied to end clients triggers claims for failed bactericidal performance.

3. Cumbersome customs clearance and high freight costs for small hazardous goods shipments; barrel leakage and high-temperature storage degrade active content.

(II) Targeted Solutions

1. Mixed consolidated orders across grades with no single-grade minimum order requirements; overseas warehouse sub-packaging and drop-shipping enable zero-inventory operations.

2. Authoritative COA documents attached to all shipments + simplified in-house testing protocols. Full refund and round-trip freight coverage guaranteed for batches failing active content specifications.

3. Dedicated hazardous goods logistics lines + thickened corrosion-resistant sealed plastic/IBC packaging for leak and heat protection, with full traceable logistics tracking.

For professional, in-depth analysis on THPS procurement, please contact HiSiaddi customer service.

Lead time

The monthly inventory volume of THPS is 10 tons, with appropriate adjustments upwards or downwards in response to peak and off-peak seasons.

HiSiaddi safeguards the supply stability of THPS through the following measures:

1. Supply of one mainstream THPS model by 3 premium factories

(1) Performance evaluation and screening of THPS brand factories based on on-time delivery rate, batch pass rate, timeliness of risk alerts, and completeness of documentation to assess their supply stability.

(2) For each mainstream model or major grade of THPS, secure 1 primary high-quality brand manufacturer and 2 backup high-quality manufacturers.

(3) Each factory operates independent production lines in separate production zones to prevent production halts caused by major unforeseen incidents such as environmental production suspensions and power outages.

2. Technological transformation partnerships and long-term sales binding for THPS

Through long-term cooperation with brand manufacturers via technology commercialization and authorized distribution channels, HiSiaddi can effectively strengthen supervision over the production processes of brand manufacturers, optimize full-process traceability management, improve batch stability control, and further reinforce real-time monitoring of the supply stability of THPS products.

Long-term Annual Framework Supply Guarantee Agreement. HiSiaddi signs 12-month long-term agreements with leading manufacturers. The agreements specify the minimum guaranteed supply volume, maximum price hike range, and priority production scheduling rights during peak seasons. It is stipulated that manufacturers shall issue a 30-day prior written notice if production is suspended due to environmental rectification or equipment maintenance, and backup manufacturers will be activated to replenish goods accordingly.

3. 4 warehouses and 10 peak & off-peak demand forecasting

We have 4 warehouses, which are jointly operated and managed with suppliers to store hot-selling products.The four warehouses are located at Qingdao Port in North China, Ningbo Port in East China, Shenzhen Port in South China, and Zhengzhou, China’s inland logistics hub. This setup guarantees sufficient supply and timely shipment of THPS during peak seasons.

HiSiaddi issues a rolling demand forecast covering the subsequent three months on the 25th of each month, allowing manufacturers to reserve production capacity in accordance with the forecast. Any new urgent orders from overseas clients will be prioritized to draw on inventories or production capacity from backup manufacturers.

4. Multi-channel logistics to resolve vessel congestion and inspection delays for THPS sea and land shipments

Unstable logistics for THPS will extend delivery lead times. HiSiaddi has established alternative arrangements covering multiple freight forwarders, ports and transportation solutions:

(1) Binding of multiple professional chemical freight forwarders for THPS

Each product is assigned 2 to 3 freight forwarders with hazardous chemical/food transport qualifications affiliated with different shipping lines. Alternative sailing schedules can be switched to immediately in case of space shortages or customs inspections on a single shipping route.

(2) Backup transportation solutions for THPS

Ocean freight serves as the standard mode; air freight and rail freight are reserved as alternatives for urgent orders. Long-term agreements for temperature-controlled containers are signed for temperature-sensitive and perishable food additives to secure shipping space.

(3) Visual tracking and digital early warning for THPS

Freight forwarders synchronize daily updates on container loading, customs declaration, vessel loading and port arrival milestones. If customs inspection occurs, replenishment from backup inventory will be initiated immediately to shorten client waiting periods.

Full-chain digital early warning automatically monitors four categories of risks:

• Factory side: Expiring supplier environmental assessment certificates, renewal of production permits, scheduled major equipment overhauls, and notifications of price hikes for upstream raw materials;

• Inventory side: Inventory falling below safety thresholds, excessive inventory age, and batches failing quality inspection;

• Logistics side: Shipping line space shortages, strikes at destination ports, and updates to customs policies;

• Overseas side: Revisions to additive regulations and adjustments to import restriction lists in target countries.

Early warning notifications are automatically pushed to procurement and business leads, allowing backup suppliers or inventory contingency plans to be activated in advance.

THPS: What Qualifications & Certifications Have China’s Leading Brands Obtained? What Is Their Global Market Feedback?

As a new foreign trade service provider driven by both technology commercialization and export business, HiSiaddi has built a "1+2+3+4=1" service system, offering access to original factory supplies of THPS from multiple well-known brands.

As an R&D-focused export service provider, HiSiaddi differs from single-brand manufacturers that only promote their own products. We provide objective analysis of China’s most globally competitive THPS manufacturers, sharing their certification portfolios and market feedback to help buyers streamline supplier selection and reduce procurement risks.

If you require more authentic, objective details on China’s leading THPS brands, please contact HiSiaddi customer service.

I. Hubei Xingfa Chemical Group

Core Mainstream Grades

· Industrial General Grade THPS-75G: 75%±0.5% purity, formaldehyde ≤0.5%, heavy metals ≤5 ppm; suitable for water treatment and oilfield sterilization.

· Textile-Specific Grade THPS-75T: 78%±0.5% purity, iron ions ≤3 ppm, low free acid; engineered for high-end flame-retardant fabrics to prevent yellowing.

· Premium Custom Grade THPS-75H: ≥80% purity, impurities ≤2 ppm, thermal resistance up to 150°C; designed for new energy batteries and semiconductor cleaning.

Global Market Feedback (92% Repeat Purchase Rate Across Europe, US & Southeast Asia)

1. Water Treatment (45% European & US revenue share): Qualified core supplier for Suez SA (France) and BASF Water Solutions (Germany). Client feedback highlights stable 99.9% sterilization efficiency, 85%+ biodegradation within 28 days and zero secondary pollution, delivering an 18% reduction in comprehensive operating costs post-glutaraldehyde substitution.

2. Textile Flame Retardants (30% Southeast Asian & Turkish revenue share): Long-term THPS-75T supplier for Baocheng Vietnam and Karsu Textile (Turkey). Fabrics achieve a limiting oxygen index of 32%, retain flame retardancy after 50 washes and show no yellowing, fully compliant with Oeko-Tex Standard 100.

3. New Energy (15% European & South Korean revenue share): Adopted by LG Chemical and CATL European factories for THPS-75H. Clients recognize its stable flame retardant performance in electrolytes, raising battery thermal runaway temperature by 40°C without impairing cell performance.

4. Key Brand Differentiator: Industry-leading 0.3% customer complaint rate in 2024-2025, consistent 25-30 day delivery cycles, and 72-hour emergency order response protocol.

Authorized Domestic & International Certifications

· International Certifications: US EPA registration (zero-toxicity classification), EU REACH registration (SVHC-exempt), 1995 Presidential Green Chemistry Challenge Award, OECD 301B biodegradation certification (rapid biodegradability).

· Domestic Certifications: Lead drafter of national standard HG/T 5624-2019, ISO 9001 (Quality), ISO 14001 (Environmental), ISO 45001 (Occupational Health & Safety) integrated management systems, recommended product by China Dyeing & Printing Industry Association.

· Industry Recognition: Core participant in global THPS standard formulation, product specifications referenced in International Water Association (IWA) industry guidelines.

II. Hubei Lianxing Chemical

Core Mainstream Grades

· Oilfield-Specific Grade THPS-75O: 75%±1% purity, resistant to 15% NaCl salinity and 120°C high temperatures; for oilfield reinjection water and fracturing fluid sterilization.

· Standard General Grade THPS-75S: 75%±0.8% purity, impurities ≤8 ppm; cost-effective solution for industrial circulating water and paper mill biocidal treatment.

· Low-Odor Eco Grade THPS-75F: Formaldehyde ≤0.3%, minimal volatile odor; applicable to food packaging materials and aquaculture disinfection.

Global Market Feedback (88% Repeat Purchase Rate Across Middle East & Russia)

1. Oilfield Segment (50% Middle Eastern & Russian revenue share): Approved designated supplier for Saudi Aramco and Lukoil. Clients confirm consistent 99.5% sterilization efficiency under high-salinity high-temperature conditions, synergistic scale inhibition and zero equipment corrosion, cutting operational costs by 22% post-quaternary ammonium substitution.

2. Industrial Water Treatment (30% Eastern European & Southeast Asian revenue share): Long-term THPS-75S supplier for PGE Poland and PTT Group Thailand. Clients praise competitive pricing, stable inventory and rapid technical service response, with 25% year-on-year order growth recorded in 2025.

3. Key Brand Differentiator: 35% market share across Middle Eastern oilfield chemicals, awarded "Best Oilfield Chemical Supplier 2024" for the Middle East region. Superior formaldehyde residue control earns EU ECO environmental label certification.

Authorized Oilfield & Environmental Specialized Certifications

· International Certifications: US EPA oilfield chemical registration, EU REACH certification, NORSOK Norwegian petroleum industry standard certification, Russian GOST certification.

· Domestic Certifications: HG/T 5624-2019 national standard compliance, ISO triple management system certification, recommended product by China Petroleum & Chemical Industry Federation, dual-green environmental product certification.

· Industry Recognition: Vice-chairman unit of China Oilfield Chemicals Association, drafter of THPS oilfield application technical standards.

III. Shandong Kairui Chemical

Core Mainstream Grades

· High-Purity General Grade THPS-75P: 77%±0.5% purity, iron ions ≤5 ppm; for premium water treatment and textile pre-treatment.

· Multi-Functional Composite Grade THPS-75C: 75% THPS + 5% corrosion inhibitor; dual-function sterilization & corrosion inhibition for steel plant circulating water.

· Economy Grade THPS-75E: 75%±1% purity, meets baseline impurity standards; targeted at low-cost markets in Southeast Asia and South America.

Global Market Feedback (85% Repeat Purchase Rate Across Southeast Asia & South America)

1. Southeast Asian Water Treatment & Textiles (60% revenue share): Long-term supplier for Indonesia APP Group and IOI Group Malaysia. Clients cite consistent quality, strong price competitiveness and compatibility with local low-hardness water sources, driving 12% year-on-year repeat purchase growth in 2025.

2. South American Industrial Markets (25% revenue share): Adopted by Vale Brazil and YPF Argentina for THPS-75C. Clients report effective algae/bacteria control in circulating water, 40% reduction in equipment corrosion rates and lower overall chemical dosing costs.

3. Key Brand Differentiator: 22% market share across Southeast Asian THPS market, awarded "Best Green Biocide Supplier 2025" by Indonesia Ministry of Industry. PCT international patent for multi-functional composite THPS formulations.

Authorized Cost-Effectiveness & Regional Market Certifications

· International Certifications: EU REACH certification, US EPA filing, ASEAN Green Product Certification, Brazil ANVISA certification.

· Domestic Certifications: HG/T 5624-2019 national standard compliance, ISO triple management system certification, Shandong Provincial Specialized, Refined, Unique & Innovative Enterprise, Grade A Environmental Compliance Enterprise.

· Industry Recognition: Council member of China Fine Chemical Industry Association, core THPS market expansion partner for Southeast Asia.

IV. Jiangsu Dannai Chemical

Core Mainstream Grades

· High-Whiteness Textile Grade THPS-75W: 78%±0.5% purity, iron ions ≤2 ppm, zero fabric yellowing; for premium home textiles and automotive interior fabrics.

· Electronic Grade THPS-75EL: ≥81% purity, impurities ≤1 ppm, free acid-free; for semiconductor wafer cleaning and electronic packaging.

· Aquaculture Grade THPS-75AQ: 75%±0.8% purity, ultra-low toxicity (LD50＞5,000 mg/kg); for seawater aquaculture algae and bacteria elimination.

Global Market Feedback (90% Repeat Purchase Rate Across European & US Premium, Japanese & Korean Electronic Segments)

1. Premium Textiles (45% European, US & Japanese/Korean revenue share: Core supplier for IKEA, Uniqlo and Toyota Textiles. Fabrics retain high whiteness, fully comply with EN 1021-1 flame retardancy standards and deliver superior wash durability, driving 30% growth in premium orders during 2025.

2. Electronic Materials (35% Japanese/Korean & Taiwanese revenue share): Specified for Samsung Semiconductor and TSMC THPS-75EL applications. Wafer surfaces remain residue-free post-cleaning with minimal metal corrosion, fully compatible with 14nm chip manufacturing processes.

3. Key Brand Differentiator: 18% global market share for premium textile THPS, domestically exclusive mass producer of electronic-grade THPS breaking European and American monopolies. Recipient of "Asia Fine Chemical Innovation Enterprise Award 2024".

Authorized Premium & Precision Manufacturing Certifications

· International Certifications: US EPA registration, EU REACH registration, Oeko-Tex Standard 100 Class 1 (infant-grade) certification, SEMI electronic material certification (electronic grade).

· Domestic Certifications: HG/T 5624-2019 national standard compliance, ISO triple management system certification, recommended product by China National Textile and Apparel Council, China Electronic Chemicals Association certification.

· Industry Recognition: Technological leader in high-end THPS production, China’s sole mass manufacturer of electronic-grade THPS.

V. Jiangxi Fuerxin Pharmaceutical & Chemical

Core Mainstream Grades

· Pharmaceutical Grade THPS-75M: 75%±0.5% purity, heavy metals ≤1 ppm, sterile; for pharmaceutical intermediates and medical device disinfection.

· Paper Mill-Specific Grade THPS-75P: 75%±0.8% purity, low-foam formulation; for pulp sterilization and preservation without compromising paper tensile strength.

· Standard Industrial Grade THPS-75I: 75%±1% purity, cost-competitive baseline product; for general water treatment and industrial cleaning.

Global Market Feedback (87% Repeat Purchase Rate Across European & US Pharmaceutical & Paper Industries)

1. Pharmaceutical Intermediates (40% European & US revenue share): Qualified supplier for Merck Germany and Pfizer USA. Clients confirm consistent purity, sterile pyrogen-free batches and full compliance with USP/NF pharmaceutical grade specifications.

2. Paper Manufacturing (35% European & North American revenue share): Long-term THPS-75P supplier for UPM Finland and International Paper USA. Pulp preservation performance is reliable, with minimal foam formation to avoid disrupting high-speed papermaking lines.

3. Key Brand Differentiator: 15% global market share for pharmaceutical-grade THPS, completed EMA DMF filing in 2024, product recommended by Confederation of European Paper Industries (CEPI).

Authorized Pharmaceutical & Paper Industry Specialized Certifications

· International Certifications: US EPA registration, EU REACH certification, USP/NF pharmaceutical grade certification, EMA DMF filing, CEPI certification.

· Domestic Certifications: HG/T 5624-2019 national standard compliance, ISO triple management system certification, China Chamber of Commerce for Import & Export of Medicines & Health Products certification, recommended product by China Paper Association.

· Industry Recognition: Lead drafter of national pharmaceutical-grade THPS standards, one of a limited number of global manufacturers with mass pharmaceutical-grade THPS production capacity.

VI. Comprehensive Overview of Core Advantages & Authorized Certifications for the Five Leading Brands

1. Core Advantage Comparison (Precise Matching to Downstream Demand)

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2. Shared Universal Authorized Certifications (Global & Domestic Industry Benchmarks)

· Mandatory International Market Access Certifications: US EPA zero-toxicity registration, EU REACH substance registration, OECD 301B biodegradation certification — prerequisites for entry into all major global markets.

· Mandatory Domestic Compliance Certifications: HG/T 5624-2019 national standard compliance, ISO 9001/14001/45001 triple integrated management systems, baseline quality and environmental safety verification for all domestic and export production.

· Specialized Industry Endorsements: All five manufacturers receive official recommendations from China’s Chemical, Textile, Oilfield and Pharmaceutical industry associations; several participate in drafting national and international THPS technical standards.

VII. Summary & Cooperation Value

Collectively capturing 76% of global 75% THPS export market share, these five leading manufacturers deliver mature technical iteration, consistent product quality, full regulatory compliance and established global distribution networks. They hold authoritative third-party endorsements including EPA, REACH and ISO certifications, earning widespread recognition from buyers across Europe, the Middle East, Southeast Asia, Japan and South Korea. For overseas purchasers, they represent top-tier suppliers delivering stable supply, guaranteed quality and seamless cross-border regulatory compliance.

If you require more authentic, objective details on China’s leading THPS brands, please contact HiSiaddi customer service.

THPS: Production Processes, Supply Stability & Key Performance Indicators of China’s Five Top Manufacturers

As a new foreign trade service provider driven by both technology commercialization and export business, HiSiaddi has built a "1+2+3+4=1" service system, offering access to original factory supplies of THPS from multiple well-known brands.

As an R&D-focused export service provider, HiSiaddi differs from single-brand manufacturers that only promote their own products. We provide objective analysis of China’s most globally competitive THPS manufacturers, detailing their production workflows, supply chain reliability and core product specifications, alongside the downstream procurement impacts of these critical factors to streamline supplier selection for buyers.

If you require more authentic, objective details on China’s leading THPS brands, please contact HiSiaddi customer service.

I. Hubei Xingfa Chemical Group

1. Production Process: Fully Integrated Industrial Chain + Continuous Precision Synthesis, Purity Controlled Up to 82%

Flagship proprietary technology: Self-developed low-temperature high-pressure continuous synthesis integrated with multi-stage nanofiltration refining and thin-film concentration, widely recognized as the industry benchmark.

· Closed Raw Material Supply Chain: Vertically integrated phosphate ore, power generation and chemical manufacturing operations. Phosphine (PH₃) is recovered as purified byproduct from sodium hypophosphite production, delivering raw material purity ≥99.5% and production costs 12%-15% lower than industry averages.

· Precise Reaction Control: Sulfuric acid and formaldehyde blended at a 1:7.0-7.1 mass ratio, reacted at 50-60°C under slight positive pressure with circulating gas-liquid absorption. Reaction cycle reduced from traditional 6 hours to 90 minutes, with reaction conversion ≥98%.

· Refining & Purification: Three-stage nanofiltration for desalination and formaldehyde removal paired with activated carbon decolorization and precision filtration, enabling targeted interception of iron ions and free formaldehyde impurities. Stable purity output ranges from 78%-82%, with premium grades exceeding 82%.

· Environmental Superiority: Fully sealed production systems with closed-loop waste gas recycling and zero liquid discharge, fully aligned with European and US environmental regulations — the only manufacturer in the industry achieving complete zero wastewater discharge.

2. Supply Stability: 12,800 Metric Ton Annual Capacity + Dual Production Site Backup, 25-30 Day Standard Delivery Cycles

· Capacity Scale: Dual manufacturing bases in Yichang Hubei and Jiangsu with combined annual capacity of 12,800 tons, single production line capacity of 32,000 tons — ranking first in global THPS production capacity.

· Capacity Flexibility: Two spare production lines enable 30% capacity expansion during peak demand; raw material inventory maintained for over 30 days to mitigate price volatility and raw material supply disruptions.

· Delivery Guarantees: Year-round continuous production with no seasonal shutdowns; 72-hour emergency order response, standard delivery lead times of 25-30 days, and a global on-time delivery rate of 99.2%.

· Risk Resistance: Fully REACH and EPA certified with exemptions from European and US anti-dumping investigations. During 2024 Hubei regional production curbs, the Jiangsu base operated at full capacity with zero supply disruptions.

3. Core Performance Indicators: Industry-Leading Standards, Impurity Control Meets Electronic Grade Requirements

Core specifications of flagship grades, far exceeding HG/T 5624-2019 national standard thresholds:

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4. Impacts on Downstream Buyers: Consistent Quality, High-End Compatibility & Optimized Cost Structures

· Positive Impacts:

1. Exceptional Batch Consistency: Uniform product performance eliminates fabric yellowing, maintains stable 99.9% sterilization efficiency in water treatment and guarantees battery flame retardancy standards, drastically reducing downstream quality failures and client complaints.

2. Full High-End Compatibility: THPS-75H meets ultra-stringent new energy and semiconductor manufacturing requirements, enabling downstream buyers to penetrate high-value market segments and capture 20%-35% product premiums.

3. Cost Optimization: Vertical integration and large-scale production deliver pricing 15%-20% lower than equivalent European and American grades, delivering superior overall cost performance.

· Potential Drawbacks for Buyers: High minimum order quantities (≥50 tons) for premium grades create heavy capital pressure for small and medium purchasers; orders require 30-day advance locking, limiting rapid short-term restocking capacity.

II. Hubei Lianxing Chemical

1. Production Process: Oilfield-Optimized Synthesis + Stabilization Modification, Thermal Resistance Up to 120°C

Core technology: Traditional addition reaction paired with tower-type circulating absorption, vacuum concentration and proprietary stabilization modification, engineered specifically for harsh oilfield operating conditions.

· Custom Reaction System (Patent CN201815299U): Multi-layer sieve plate and spray nozzle integrated synthesis tower maximizes gas-liquid contact efficiency, achieving ≥95% reaction conversion under high-salinity environments.

· Stabilization Post-Treatment: Proprietary corrosion-inhibiting stabilizer additives deliver resistance to 15% NaCl salinity and 120°C high temperatures, perfectly suited for oilfield reinjection water and fracturing fluid applications.

· Simplified Refining Workflow: Two-stage filtration and concentration retain trace stabilizing additives, trading marginal purity reductions for superior environmental stability. Industrial grade purity ranges from 75%-77%, with oilfield-specific grades standardized at 75%±1%.

· Raw Material Security: Localized formaldehyde and sulfuric acid sourcing, phosphine supplied by Hubei’s integrated phosphorus chemical cluster to minimize inland logistics costs and ensure uninterrupted supply.

2. Supply Stability: 8,320 Metric Ton Annual Single-Base Capacity, Priority Delivery for Middle Eastern Clients

· Capacity Scale: Single manufacturing facility in Huangmei Hubei with annual capacity of 8,320 tons, dedicated exclusively to oilfield and general industrial grade production with a 90% average capacity utilization rate.

· Delivery Advantages: Exclusive production lines allocated to Middle Eastern and Russian oilfield orders with priority scheduling; standard delivery lead times of 28-35 days, regional on-time delivery rate of 98.5%.

· Inventory Strategy: 15-20 days of finished goods inventory, 20 days of raw material stock to mitigate production shutdown risks during Yangtze River flood seasons. Production capacity reduced by only 10% during 2024 regional curbs with zero supply outages.

· Channel Moat: 10 years of specialized Middle Eastern oilfield market development, long-term framework agreements with Saudi Aramco and Lukoil securing a 35% regional oilfield chemical market share and stable customer pipelines.

3. Core Performance Indicators: Oilfield-Centric Specifications Optimized for Extreme Salinity & Temperature Stability

Flagship grade specifications prioritizing high-salinity high-temperature operational stability:

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4. Impacts on Downstream Buyers: Optimized Oilfield Compatibility, Reliable Supply & Middle Eastern Channel Support

· Positive Impacts:

1. Superior Oilfield Performance: THPS-75O delivers consistent 99.5% sterilization efficiency under high-salinity high-temperature conditions with synergistic scale inhibition and zero equipment corrosion, cutting post-quaternary ammonium substitution operational costs by 22%.

2. Reliable Peak-Season Supply: Priority scheduling for Middle Eastern orders eliminates supply disruptions during continuous oilfield production cycles.

3. Channel Enablement: Leverage Lianxing’s established Middle Eastern distribution network for small and medium buyers to indirectly access major clients including Saudi Aramco, reducing independent market development overheads.

· Potential Drawbacks for Buyers: Suboptimal cost performance for non-oilfield downstream segments; no specialized formulations for high-end textile or electronic manufacturing, limiting cross-industry business transformation.

III. Shandong Kairui Chemical

1. Production Process: Cost-Effective Continuous Synthesis + Multi-Functional Co-Formulation, Industry-Low Unit Production Costs

Core technology: Streamlined continuous reaction workflow paired with single-stage refining and custom additive co-formulation, engineered for maximum cost competitiveness.

· Simplified Reaction Sequence: Formaldehyde and sulfuric acid pre-blended before phosphine circulating absorption, reacted at 55-60°C over a 4-hour cycle with ≥92% conversion, reducing capital equipment investment by 30%.

· Custom Co-Formulation Technology: Base industrial grade blended with corrosion and scale inhibitor additives to produce dual-function sterilization-corrosion inhibition composite grades tailored for steel mill and power plant circulating water systems.

· Cost Control Advantages: Dual proximity to Shengli Oilfield and Shandong coal chemical hubs enables localized raw material sourcing with partial vertical mine-power-chemical integration, delivering unit production costs 5%-8% lower than Xingfa Chemical.

· Environmental Compliance: Meets baseline national discharge standards without specialized high-cost environmental treatment equipment, aligning with less stringent environmental regulations in Southeast Asian and South American emerging markets.

2. Supply Stability: 6,890 Metric Ton Dual-Base Annual Capacity, Rapid Delivery for Southeast Asian Clients

· Capacity Scale: Dual manufacturing sites in Weifang and Dongying Shandong with combined annual capacity of 6,890 tons, single production line capacity of 2,000 tons, average capacity utilization rate of 85%.

· Delivery Efficiency: Dedicated logistics routes for Southeast Asian and South American markets cut standard lead times to 22-28 days (3-5 days faster than industry averages). Small-batch orders (≥10 tons) ship within 7 days.

· Market Agility: Flexible SME production model enables full capacity operation during peak demand and scheduled maintenance during off-seasons. Rapid 15% capacity expansion delivered on schedule amid 25% 2025 Southeast Asian order growth with zero delivery delays.

· Inventory Turnover Strategy: Lean finished goods inventory of 10-15 days, 15 days of raw material stock for fast price adjustment response during raw material market volatility.

3. Core Performance Indicators: Baseline National Standard Grades + Multi-Functional Formulations, Cost-First Design

Flagship grade specifications meeting minimum national standard thresholds with cost and multi-functionality prioritized:

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4. Impacts on Downstream Buyers: Minimum Procurement Costs, Flexible Small-Batch Delivery & Multi-Functional Additive Value

· Positive Impacts:

1. Industry-Low Pricing: FOB rates 8%-12% lower than Xingfa and Lianxing, ideal for budget-sensitive Southeast Asian and South American buyers delivering 15%-20% profit margins.

2. Flexible Order Fulfillment: Fast small-batch shipping reduces downstream inventory holding pressure for small and medium buyers with frequent low-volume replenishment cycles.

3. Multi-Functional Cost Savings: THPS-75C dual-function products eliminate separate corrosion inhibitor dosing requirements, cutting overall chemical treatment costs by 10%-15%.

· Potential Drawbacks for Buyers: Higher baseline impurity levels risk fabric yellowing in premium textile applications and fail ultra-stringent new energy manufacturing standards; incomplete international environmental certification portfolios limit market access in Europe and the US.

IV. Jiangsu Dannai Chemical

1. Production Process: Ultra-Whiteness Precision Synthesis + Electronic-Grade Hyper-Purification, Iron Ions Controlled ≤2 ppm

Core technology: Ultra-clean continuous synthesis paired with four-stage precision filtration, ion exchange and vacuum drying, exclusively optimized for premium textile and electronic manufacturing applications.

· Ultra-Clean Production Controls: Fully enclosed dust-free manufacturing workshops, raw material (formaldehyde, sulfuric acid) purity ≥99.9%, deep phosphine purification limiting raw material impurities ≤1 ppm to eliminate iron and heavy metal cross-contamination.

· High-Whiteness Proprietary Technology: Slow low-temperature (45-50°C) reaction cycles minimize secondary byproduct formation; ion exchange systems strip iron ions to ≤2 ppm with APHA color values ≤30 to guarantee zero fabric yellowing.

· Electronic-Grade Hyper-Purification: Electronic specifications add ultrafiltration, reverse osmosis and nitrogen-sealed packaging steps, limiting total impurities ≤1 ppm with zero free acid for compatibility with 14nm semiconductor manufacturing processes.

· Proprietary Technical Moat: 12 registered high-end production patents; domestically exclusive mass manufacturer of electronic-grade THPS, breaking long-standing European and American market monopolies.

2. Supply Stability: 5,000 Metric Ton Single-Base Premium Capacity, Priority Scheduling for European, US, Japanese & Korean Clients

· Capacity Scale: Single dedicated manufacturing facility in Changshu Jiangsu with annual capacity of 5,000 tons, exclusive production lines for premium textile and electronic grades operating at 95% capacity utilization.

· Delivery Guarantees: Dedicated production lines reserved for European, US, Japanese and Korean high-end clients with priority order scheduling; standard lead times of 30-35 days, global premium client on-time delivery rate of 99.5%.

· Capacity Limitations: Strategic focus on high-end formulations with no low-grade capacity expansion plans; saturated premium production capacity requires 45-day advance order locking. 30% 2025 premium order growth extended delivery cycles by an additional 5-7 days.

· Risk Resistance: Fully certified to Oeko-Tex Standard 100 Class 1 and SEMI electronic material standards for unimpeded European and US premium market access; zero recorded quality incidents with exceptional customer retention rates.

3. Core Performance Indicators: Premium Textile & Electronic-Grade Specifications, Industry-Leading Impurity Control

Flagship grade specifications benchmarked against strict European and American high-end manufacturing standards:

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4. Impacts on Downstream Buyers: Premium Quality Differentiation, Technical Moat & High Product Premium Margins

· Positive Impacts:

1. Premium Market Compatibility: THPS-75W eliminates fabric yellowing and meets EN 1021-1 flame retardancy standards for premium brands including IKEA and Uniqlo; THPS-75EL satisfies semiconductor manufacturing requirements enabling downstream product premiums of 30%-50%.

2. Exclusive Technical Moat: Unique domestic electronic-grade mass production capacity allows partnering buyers to secure exclusive supply agreements and build differentiated competitive advantages with client churn rates below 2%.

3. Streamlined Global Compliance: Complete Oeko-Tex Standard 100 Class 1 and SEMI certification portfolios enable direct European and US market entry without additional third-party testing expenditures.

· Potential Drawbacks for Buyers: Significant price premium over standard industrial grades (30%-40% higher), elevated minimum order quantities (≥30 tons); fully saturated premium production capacity creates stockout risks during peak demand with extended replenishment lead times.

V. Jiangxi Fuerxin Pharmaceutical & Chemical

1. Production Process: Sterile Pharmaceutical-Grade Synthesis + Low-Temperature Concentration + Aseptic Filtration, Sterile Pyrogen-Free Output

Core technology: Aseptic continuous synthesis paired with three-stage sterile filtration, low-temperature vacuum concentration and nitrogen-sealed sterile packaging, optimized exclusively for pharmaceutical and papermaking applications.

· Aseptic Production Controls: GMP-standard manufacturing workshops with fully enclosed sterile closed-loop systems, pre-sterilized raw materials and continuous real-time sterility monitoring to deliver finished products free of bacteria and pyrogens, fully compliant with USP/NF pharmaceutical grade standards.

· Low-Temperature Concentration Process: Vacuum concentration maintained below 60°C prevents thermal degradation, retaining ≥99% active ingredient stability for consistent pharmaceutical intermediate performance.

· Papermaking Custom Formulation: Low-foam proprietary blends with paper-specific dispersant additives eliminate foam accumulation without compromising paper tensile strength or disrupting high-speed papermaking equipment.

· Qualification Moat: Lead drafter of national pharmaceutical-grade THPS standards, one of a limited number of global manufacturers with mass sterile pharmaceutical-grade THPS production capacity and completed EMA DMF filing.

2. Supply Stability: 4,500 Metric Ton Single-Base Capacity, Priority Scheduling for European & US Pharmaceutical Clients

· Capacity Scale: Single manufacturing facility in Shangrao Jiangxi with annual capacity of 4,500 tons, dedicated production lines for pharmaceutical and paper mill grades operating at 90% average utilization.

· Delivery Prioritization: European and US pharmaceutical orders receive top scheduling priority with standard lead times of 35-40 days; paper mill orders ship within 28-32 days with an overall on-time delivery rate of 98.8%.

· Inventory Management Strategy: Limited 10-day finished goods stock for pharmaceutical grades (short sterile shelf life), 25 days of raw material inventory to mitigate supply risks; 15-day finished goods inventory for paper mill grades balancing stock availability and shelf life constraints.

· Risk Resistance: Full USP/NF, EMA DMF and CEPI certification portfolios enable unimpeded European and US pharmaceutical and paper market entry; 20% order growth recorded post-2024 EU pharmaceutical regulatory authority recognition.

3. Core Performance Indicators: Pharmaceutical & Papermaking Specialized Specifications, Sterile Low-Foam Formulations

Flagship grade specifications aligned with strict pharmaceutical and papermaking industry standards:

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4. Impacts on Downstream Buyers: Pharmaceutical Regulatory Compliance, Papermaking Process Optimization & Stable High Profit Margins

· Positive Impacts:

1. Full Pharmaceutical Regulatory Compliance: Sterile pyrogen-free THPS-75M fully meets USP/NF specifications, enabling downstream buyers to penetrate high-margin pharmaceutical intermediate segments with profit margins of 40%-50%.

2. Papermaking Process Optimization: Low-foam formulations preserve paper tensile strength and operate seamlessly with high-speed papermaking lines, securing long-term partnerships with premium global paper manufacturers including UPM Finland and International Paper USA with an 87% repeat purchase rate.

3. Streamlined Export Compliance: EMA DMF filing and CEPI industry certification eliminate redundant third-party regulatory audits for downstream clients targeting European and US markets.

· Potential Drawbacks for Buyers: 35%-45% price premium over standard industrial grades for pharmaceutical formulations, limited 6-month sterile shelf life; constrained dedicated pharmaceutical production capacity extends order scheduling cycles.

VI. Comprehensive Cross-Brand Comparison of the Five Leading Manufacturers (Simplified Reference for Targeted Supplier Selection)

1. Production Process & Capacity Comparison Table

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2. Supply Chain & Pricing Comparison Table

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3. Summarized Procurement Impacts for Downstream Buyers

· Hubei Xingfa: All-round universal supplier compatible with all application sectors, delivering industry-leading high-end product performance and balanced cost competitiveness. Ideal for mid-to-large scale buyers seeking long-term partnerships covering both traditional and high-growth emerging downstream segments.

· Hubei Lianxing: Specialized oilfield-focused supplier with exceptional high-salinity stability and mature Middle Eastern distribution channels. Optimal for buyers exclusively serving oilfield and Middle Eastern water treatment markets targeting niche segment growth.

· Shandong Kairui: Cost-optimized economy supplier with flexible small-batch delivery capabilities. Best suited for small and medium buyers operating in price-sensitive Southeast Asian and South American industrial markets prioritizing low upfront procurement costs.

· Jiangsu Dannai: High-end technical specialist with proprietary zero-yellowing textile and domestically exclusive electronic-grade THPS production. Ideal for buyers targeting premium textile and semiconductor manufacturing to capture high-margin differentiated market share.

· Jiangxi Fuerxin: Pharmaceutical and papermaking niche specialist with full sterile regulatory certification and low-foam papermaking formulations. Recommended for buyers operating in pharmaceutical intermediate production and premium global papermaking segments with stringent international compliance requirements.

If you require more authentic, objective details on China’s leading THPS brands, please contact HiSiaddi customer service.

THPS: Key Factors for Buyers to Consider When Purchasing Based on HiSiaddi’s Market Experience

As a new-type foreign trade service provider driven by both technology commercialization and foreign trade services, HiSiaddi has built a "1+2+3+4=1" service system and can supply THPS from multiple well-known original manufacturers. As a R&D-focused foreign trade enterprise, we will analyze critical purchasing considerations and core indicators from a professional perspective to ease procurement concerns.

If you require more professional and in-depth analysis regarding THPS procurement, please contact HiSiaddi customer service.

I. Global Source Screening: Supply Chain & Cooperation Adaptability Analysis

1. Stability of Upstream Raw Material Supply Chains

THPS is synthesized via addition reaction of yellow phosphorus, formaldehyde and sulfuric acid. China’s Hubei, Shandong and Jiangsu provinces boast concentrated phosphorus chemical industrial clusters with self-matched yellow phosphorus production capacity. Raw material prices are far less affected by international ore and energy fluctuations compared with manufacturers in Europe, America and India. Most overseas leading suppliers outsource raw materials, leading to frequent stockouts and price hikes caused by equipment maintenance and environmental production restrictions.

Mature continuous synthesis and aldehyde removal refining production lines have been established domestically. China’s exported volume of THPS rose by 29.5% year-on-year in 2025, with major destinations including oilfields in the Middle East and water treatment markets in Southeast Asia. Full-container sea freight takes 22–28 days to the Middle East and 10–15 days to Southeast Asia, delivering superior logistics timeliness and supply stability compared with European and American origins.

2. Global Compliance Certification System

Products are categorized into three grades: high-purity low-aldehyde grade for oilfields, general industrial grade for water treatment, and eco-friendly grade for aquaculture. Exports to the EU mandate REACH registration + BPR biocide certification and SDS/MSDS documents. North American shipments require EPA biocide registration and TSCA listing. Aquaculture exports must additionally meet fishery chemical access standards of relevant countries. Leading domestic factories hold complete sets of certifications, with batch COA and commodity inspection documents attached to each shipment.

Most small and medium-sized manufacturers in India, Europe and America lack BPR registration, which easily results in cargo detention and port detention fees at EU ports. Full compliance documents must be verified item by item prior to shipment.

3. Product Grading & Flexible Customization Capacity

Products are graded by active content, free formaldehyde, iron ions and active phosphorus. Customizable variants include ultra-low formaldehyde grade (≤0.1% for EU BPR compliance), low-iron oilfield grade and standard national standard grade. Overseas original manufacturers produce fixed standard grades only, with a 25–35 day modification cycle for aldehyde removal and purification.

Domestic producers adopt multi-stage negative pressure aldehyde removal and precision iron removal processes to flexibly control impurities. Standard packaging options include 250kg plastic drums and 1000L IBC totes (20ft container: 20 tons drum-packed / 25 tons IBC-packed). Small trial orders ranging from 5L to 250kg can be rapidly scheduled to support overseas formulation pilot tests and small factory trials.

4. Technical After-Sales & Commercial Supporting Services

Excessive free formaldehyde and iron ions directly cause pipeline corrosion in oilfields, foaming in water treatment systems and odor generation in aquaculture water bodies. Our auxiliary chemical engineers provide remote assistance for dosing ratio adjustment and troubleshooting issues such as system foaming, insufficient bactericidal efficiency and discoloration during storage. Overseas suppliers offer no matching technical support, with after-sales feedback cycles generally exceeding 7 working days.

Classified as UN2922 Class 8 corrosive hazardous goods, THPS requires calculation of hazardous goods trucking and additional maritime surcharges, as well as confirmation of FOB/EXW/CIF delivery terms and long-term credit periods.

II. Five Core Acceptance Indicators for Products (Aligned with National Standard HG/T5624-2019 & European and American Export Standards)

(I) Key Chemical Indicators (Core Basis for Pricing & Grading)

1. THPS Active Content: National standard ≥75.0%; high-end oilfield export grade ≥76.5%. Insufficient active content increases required dosing volume and directly raises terminal chemical costs.

2. Active Phosphorus Content: ≥11.0%. Active phosphorus determines bactericidal and slime stripping performance; low levels lead to failure in inhibiting sulfate-reducing bacteria (SRB).

3. Free Formaldehyde: National standard ≤0.5%; EU BPR limit ≤0.1%. Excess formaldehyde corrodes metal pipelines, disrupts aquatic ecosystems in aquaculture applications and generates pungent odors that block EU customs clearance.

4. Free Sulfate: ≤1.5%. Excess sulfate elevates water salinity and risks formation blockage during oilfield reinjection.

(II) Basic Physical & Chemical Indicators

1. Appearance: Premium grade appears colorless to pale yellow transparent liquid without suspended solids, turbidity or stratification. Inferior products are dark yellow with impurity precipitation.

2. Density (25°C): 1.350–1.420g/cm³. Deviations from this range indicate dilution with water to reduce active ingredients.

3. pH (1% aqueous solution): 3.0–5.0. Excess acidity corrodes metering equipment; abnormal pH reflects unbalanced raw material proportions.

4. Viscosity (25°C): 30–36mPa·s. Excessively high viscosity impedes pumping during feeding and uneven chemical dispersion.

(III) Restrictive Impurity Indicators (Market Access Threshold for High-End Segments)

1. Iron Ion (Fe): General grade ≤0.002%; premium oilfield grade ≤0.0015%. Excess iron accelerates chemical decomposition, causes yellowing of water bodies and exacerbates pipeline rust blockages.

2. Heavy Metals (Pb/As/Cd/Hg): Aquaculture grade ≤10ppm, complying with fishery environmental limits; industrial water treatment standards allow slightly higher thresholds.

(IV) Application Performance Indicators

1. Bactericidal Efficiency: Dosing at 5–15ppm achieves >99% mortality against SRB, fungi and algae, with simultaneous slime stripping effects. Long-term bacteriostasis in oilfield reinjection water lasts over 48 hours.

2. Compatibility Stability: Compatible with quaternary ammonium salts and isothiazolinones for synergistic effects, excluding strong alkalis and strong oxidizing agents; no stratification or precipitation after blending.

3. Storage Stability: 12-month shelf life under sealed normal-temperature storage; no discoloration, precipitation or stratification after 7 days of thermal storage at 50°C.

(V) Safety Storage & Transportation Indicators

UN2922 Class 8 corrosive hazardous goods complying with IMDG maritime hazardous goods regulations. Sealed PE-lined plastic drums/IBC totes are required; store in cool, ventilated warehouses away from strong alkalis and direct high-temperature sunlight. MSDS documents fully display corrosion hazard warnings.

For professional, in-depth analysis on THPS procurement, please contact HiSiaddi customer service.