SHANGHAI HI SILICON TECHNOLOGY CO., LTD.
SHANGHAI HI SILICON TECHNOLOGY CO., LTD.

CMIT/MIT Isothiazolinone: Compliance Case of EU BPR Biocide Regulation and OCH Control Rules

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    As a new-type foreign trade service provider driven by both technology transformation and foreign trade services, HiSiaddi has established a "1+2+3+4=1" service system and can supply original factory sources of CMIT/MIT isothiazolinone from multiple well-known brands. With more than ten years of market experience and cooperation with factories on technology transformation, HiSiaddi has rich experience in product compliance issues. Below is a case handled by HiSiaddi regarding compliance problems of CMIT/MIT isothiazolinone.

    If you want to consult more compliance issues of CMIT/MIT isothiazolinone products, please contact HiSiaddi customer service.

    Case: Swiss High-End Fine Chemical Enterprise ArgoChem Encountered Multiple EU Compliance Barriers When Purchasing CMIT/MIT

    HiSiaddi provided one-stop solutions to address full-chain compliance covering REACH/BPR/CLP and domestic hazardous goods export, securing an annual long-term procurement order of 158 tons.

    I. Client Profile

    ArgoChem is located in the industrial zone of Zurich, Switzerland, with 28 years of R&D and production experience in high-end water-based industrial coatings, precision metal working fluids and food-grade supporting anticorrosion additives. Its products are supplied to local construction machinery coating manufacturers in Switzerland, major paper groups in the Alpine region and supporting water projects of the Swiss Federal Water Authority. All full product lines comply with EU REACH, BPR biocide regulations, CLP classification and labeling regulations and Switzerland’s OCH chemical control rules, with all finished product formulas filed with the Swiss Federal Environment Agency. Raw material compliance documents are directly linked to finished product listing qualifications and customs access. The enterprise has long imported original CMIT/MIT biocide from Germany. Driven by successive price hikes and tight production capacity of European local raw materials, it launched a China-sourced procurement plan in 2025 with an annual intended total procurement volume of 158 tons, divided into 72 tons for coating anticorrosion, 56 tons for high-alkali cutting fluids and 30 tons for industrial closed circulating water.

    After the client independently contacted two domestic CMIT/MIT source manufacturers and finalized samples and quotations, four major types of obstacles emerged successively including EU import access compliance, domestic hazardous goods customs declaration compliance, product component compliance and label document compliance. Domestic manufacturers could only issue factory quality inspection reports, unfamiliar with detailed EU regulatory rules and unable to provide corresponding compliance dossiers. When the first 3-ton trial shipment was about to be loaded, shipping companies refused booking due to incomplete compliance documents. The Swiss importer predicted goods would be detained by EU customs upon arrival with huge fines, stalling the project for nearly 60 days. The client fully entrusted HiSiaddi foreign trade with overall coordination of full-process compliance rectification and completion of full sets of compliance documents.

    II. Four Core Compliance Bottlenecks (Key Obstacles Blocking Client Procurement)

    Bottleneck 1: Incomplete REACH Compliance, Lack of EU Tonnage Coverage and Special SVHC Dossiers

    CMIT and MIT monomers of domestic suppliers only completed small-tonnage pre-registration, unable to cover the client’s full annual import volume of 158 tons. Trace by-products in the compound product system lacked SVHC Substances of Very High Concern screening. Domestic old-format SDS Safety Data Sheets failed to mark CAS numbers and SVHC content ratios of each component in accordance with REACH regulations, making it impossible for EU importers to complete domestic import notifications. Per ECHA provisions, chemicals without valid tonnage registration are prohibited from circulation within EU territory.

    Bottleneck 2: Blank BPR Biocide Compliance, Lack of Supporting Documents for PT6/PT9 Product Authorization

    CMIT/MIT falls under biocidal products regulated by EU BPR regulations, corresponding to PT6 in-can preservatives and PT9 polymer preservative categories. Although active substances are listed in the EU approved list, domestic manufacturers cannot provide full sets of supporting documents including product formula toxicology summaries, efficacy test reports and auxiliary filing documents for EU member states. Current Swiss customs policy dictates biocidal preservatives lacking complete BPR dossiers will be detained on-site and returned to the port of origin.

    Bottleneck 3: Non-Compliant CLP Labels and SDS, Incorrect GHS Classification Markings

    Original Chinese-English SDS adopted outdated 16-section content with incorrect hazard classification: the compound product classified as Category 6.1 acute toxicity + Category 8 corrosivity was only marked as a single irritant hazard. Outer package labels failed to print pictograms, signal words and precautionary statements in accordance with EU CLP specifications. Swiss customs brokers clarified inconsistent labels and SDS will trigger the EU Rapid Alert System (RAPEX), with full containers facing mandatory recall.

    Bottleneck 4: Substandard Domestic Export Hazardous Goods Inspection and Hazardous Package Compliance, Unable to Complete Normal Customs Clearance and Shipment

    Original plastic barrel packaging failed to pass UN hazardous goods packaging performance identification, lacking the full set of "Exit Hazardous Goods Packaging Performance Certificate + Usage Identification Certificate" (hazardous package certificates). Hazard classification identification was not completed at customs, making official hazard characteristic classification reports unavailable. Vague HS code declaration by HiSiaddi led to direct rejection of booking applications by shipping agents and maritime authorities, leaving goods stranded in factory warehouses.

    III. Four-Module Step-by-Step Compliance Rectification Plan Implemented by HiSiaddi

    Module 1: Complete REACH Compliance Closed-Loop, Supplement Tonnage Registration and Full SVHC Dossiers

    1. HiSiaddi cooperated with EU local compliance OR (Only Representative) institutions, taking domestic manufacturers as the main body to split two monomers CMIT (CAS: 26172-55-4) and MIT (CAS: 2682-20-4), upgrading original small-tonnage pre-registration to complete tonnage coverage registration for the full 158-ton annual consumption volume, filing dossiers on the REACH-IT system and generating unique registration numbers for the Swiss client’s import declaration.

    2. Entrust CNAS-accredited third-party laboratories to conduct full-component SVHC screening of finished products, testing heavy metal and organohalogen by-product content in test samples. For trace slightly exceeding components detected, coordinate factories to fine-tune synthesis processes and reduce residual by-products, issue compliant screening reports, and simultaneously update Section 3 component lists of SDS to mark substance content and SVHC judgment results of each material, meeting EU downstream notification requirements.

    Module 2: Supplement BPR Biocidal Product Compliance to Match PT Category Filing for Swiss Market

    1. Sort out three application scenarios of client products: coating materials classified as PT6 (in-can preservatives), cutting fluids and circulating water classified as PT9 (industrial raw material preservatives). Assist factories in retrieving original EU approval dossiers of active substances, sort full sets of raw data including product bacteriostatic efficacy tests, acute toxicology and ecotoxicity, and compile English chemical compliance summaries.

    2. Leverage HiSiaddi’s European local resources to complete simplified cross-member-state product filing with Germany’s BPR competent authority, obtaining auxiliary access certificates for the Swiss market. The full set of BPR dossiers was simultaneously submitted to the client for raw material filing with the Swiss Environmental Agency, resolving the market access compliance threshold for finished end products.

    Module 3: CLP Compliance Rectification, Recompile SDS and Customize EU-Compliant Outer Package Labels

    1. Recompile Chinese-English bilingual new-version SDS in accordance with the 7th edition of GHS + EU CLP regulations, correcting hazard classification to clearly define the product as dual dangerous goods of Category 6.1 acute toxicity + Category 8 corrosivity, and improve 16 sections including first aid, spill disposal and ecological information, reviewed and stamped effective by EU compliance institutions.

    2. Uniformly customize foreign trade-specific self-adhesive labels for outer packages, strictly printing GHS corrosivity and toxicity pictograms, hazard statement H codes, precautionary statement P codes and EU importer information. All batches of barrels were uniformly labeled to ensure complete consistency of labels, SDS and physical component data.

    Module 4: Deliver Domestic Export-End Hazardous Goods Compliance, Complete Full Sets of Documents Including Inspection, Hazardous Packages and Classification Identification

    1. Coordinate packaging factories to send plastic packaging for testing of three performance indicators: drop test, air tightness test and stacking test, applying to local customs for hazardous goods packaging performance certificates. Conduct on-site commodity inspection after filling goods to obtain hazardous goods packaging usage identification certificates (full set of hazardous package certificates).

    2. Send samples to customs-recognized laboratories to issue Hazard Characteristic Classification Identification Reports, accurately verify UN numbers and hazard grades, standardize detailed HS code declarations, supplement export hazardous goods compliance statements, complete electronic account filing of hazardous goods at customs, and supplement full commodity inspection customs clearance documents to meet all mandatory requirements of maritime declaration and warehouse entry at terminals.

    IV. Sample Shipment, Batch Performance and Signing of Annual 158-Ton Long-Term Procurement Agreement

    1. Verification of Rectified Samples: Electronic versions of full compliance documents were submitted to the compliance department of ArgoChem in Switzerland for review in advance, passing dual pre-inspection by the Swiss Environmental Protection Agency and import customs brokers. The rectified 3-ton trial order completed smooth booking and normal customs clearance release at Shanghai Port with full compliance documents, transited via Hamburg to Zurich, with zero inspection and zero fines upon destination customs clearance. Physical and chemical and bacteriostatic indicators of products put into production at the client’s laboratory all met standards.

    2. Phased Batch Delivery: The first shipment of 46 tons (22 tons for coatings, 18 tons for cutting fluids, 6 tons for circulating water) was delivered first, and the remaining 112 tons were scheduled for production and shipment in three quarterly batches. HiSiaddi took full control of compliance documents accompanying goods for each batch, achieving one-time release for customs clearance of four consecutive batches.

    3. Renewal and Deepened Cooperation: ArgoChem successfully completed localization substitution of German raw materials with domestic procurement costs reduced by 33%, renewing the annual CMIT/MIT procurement framework of 210 tons the following year. Meanwhile, all China procurement compliance and selection work for full-series anticorrosion raw materials including BIT, DCOIT and IPBC was fully entrusted to HiSiaddi.

    V. Project Review and Summary

    1. Common Compliance Shortcomings of the Industry: Most domestic CMIT/MIT manufacturers focus on domestic low-end sewage treatment and low-cost daily chemical markets, only meeting national standards and basic domestic hazardous goods export requirements without in-depth research on refined EU REACH/BPR/CLP regulations. Low-end clients only value unit prices without requiring EU compliance dossiers, while mid-to-high-end European and American enterprises are restricted by multi-national chemical legislation. Complete compliance documents serve as mandatory access thresholds for goods, and a single manufacturer cannot independently complete full-process cross-regional compliance handling.

    2. Core Service Value of HiSiaddi: Rely on domestic and foreign compliance resources to connect the full chain covering upstream factory formula optimization → domestic commodity inspection and hazardous packages → EU regulatory registration → destination customs filing, bridging information blind spots of overseas regulatory rules for domestic manufacturers, and eliminate procurement concerns of overseas mid-to-high-end clients through compliance services to form differentiated competitive advantages.

    3. Rigid Demand of Mid-to-High-End Clients: When purchasing high-quality overseas end products, buyers not only focus on physical and chemical performance of products but also prioritize full-chain compliance delivery capabilities. Complete compliance solutions are the core key to securing long-term framework orders.

    If you want to consult more compliance issues of CMIT/MIT isothiazolinone products, please contact HiSiaddi customer service.


    References
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