As an innovative foreign trade service provider driven by both technology transformation and foreign trade business, HiSiaddi has built a "1+2+3+4=1" service system and can supply vitamin B12 (cyanocobalamin) from multiple well-known original manufacturers. As a tech-driven foreign trade enterprise, HiSiaddi has repeatedly resolved customized product demands for vitamin B12 (cyanocobalamin) through technological transformation cooperation with manufacturers and precise insight into market demands. Below is a case of HiSiaddi addressing customized requirements for vitamin B12 (cyanocobalamin).
Contact HiSiaddi customer service for more customized service inquiries.
Client: NutriVital AG, SwitzerlandA top Swiss enterprise specializing in dietary supplements and high-end active pharmaceutical ingredients (APIs). It focuses on high-purity pharmaceutical-grade vitamins, maternal and infant-specific nutritional fortifiers, and high-end anti-aging compound formulas, supplying premium lines of Lindt, Nestlé, and Bayer’s healthcare division in Germany. The company adheres to stringent global standards including European Pharmacopoeia EP 10.0, FDA cGMP, REACH, ISO 22000, KOSHER and HALAL. Its core procurement principles prioritize high purity, low impurities, zero batch deviation, adjustable customization, and full traceability across the supply chain. It is price-insensitive and rejects ordinary industrial-grade products.
Core Customization Requirements: High-purity cyanocobalamin (vitamin B12) powder meeting EP standards with assay ≥99.5%, moisture ≤0.5%, heavy metals (lead/arsenic/mercury) ≤1ppm, free cyanide ≤50ppm, and zero microbial detection. Custom particle size D90=15±2μm (ultrafine powder for sublingual lozenges). GLP laboratory full-test reports recognized by Switzerland for each batch. Flexible small-batch production: initial order of 50kg, followed by monthly orders of 100–200kg.
The client previously contacted 3 domestic manufacturers, all of which rejected the request due to inaccurate particle size control, excessive impurities, incomplete compliance documents, and insufficient flexible production capacity for small batches. The client entrusted HiSiaddi with full coordination, demanding 100% matching of customized parameters, zero compliance risks, on-time delivery, and stable long-term supply.
· Precise particle size control challenge: Conventional manufacturers can only achieve D90=30–50μm, while the client requires ultrafine powder of 15±2μm. Special jet milling and classification equipment is required, yet vitamin B12 suffers poor thermal stability and degrades above 100°C, which can be triggered by high temperatures during milling.
· Difficulty achieving high purity and low impurities: The EP standard mandates assay ≥99.5%, free cyanide ≤50ppm and heavy metals ≤1ppm. Conventional fermentation processes generate abundant impurities, while chemical synthesis leaves high cyanide residues. A combined fermentation, deep purification and green conversion process is required, mastered by only a handful of leading domestic manufacturers.
· Hard to guarantee batch consistency: Vitamin B12 fermentation is highly sensitive to temperature, pH and cobalt salt concentration. The client requires assay deviation ≤±0.2% and particle size deviation ≤±1μm across batches, which calls for a fully automatic DCS control system and strict in-process quality control.
· Cumbersome document requirements: Full EP-standard COA, cGMP certificates, REACH registration, KOSHER/HALAL certifications, GLP laboratory test reports, certificates of origin and non-GMO declarations are mandatory. Most ordinary manufacturers provide incomplete documents or files that fail to meet required formats.
· Strict impurity testing standards: Swiss customs conduct targeted spot checks on free cyanide, residual solvents (acetone/methanol), heavy metals and microorganisms. Self-inspection reports from regular manufacturers are unrecognized, requiring testing by CNAS/CE-certified laboratories approved by the EU.
· Rigorous environmental compliance: Vitamin B12 production is classified as a high-pollution industry. Compliance with China’s emission standards (wastewater COD ≤80mg/L, VOCs ≤20mg/m³, zero cyanide discharge) is a prerequisite for production.
Most domestic manufacturers operate mass production lines with minimum single batches of 500kg, featuring fixed equipment and tight production schedules. Small orders of 50kg incur high adjustment costs and long lead times (≥45 days). Factories are reluctant to adjust process parameters for small orders, leading to repeated rejection of the client’s customization demands.
Leveraging extensive resources in the vitamin industry, HiSiaddi eliminated mass-production factories and selected Zhejiang Medicine – a domestic leader in vitamin B12 and top 3 global producer with complete EP/FDA certifications and dedicated flexible production lines for small-batch customization. Key matching strengths:
· Technology: Mastery of the full-process workflow: fermentation, membrane separation, chromatographic purification and green cyanidation, enabling stable production of 99.5% high-purity cyanocobalamin. Equipped with low-temperature jet mills to precisely control D90=15±2μm while maintaining processing temperatures below 60°C to prevent vitamin B12 degradation.
· Compliance: Full certifications including EP, USP, cGMP, ISO 22000, REACH, KOSHER and HALAL, plus an in-house GLP laboratory authorized to issue EU-recognized test reports.
· Production capacity: Dedicated flexible production lines for batches of 50–200kg, compressing lead times to 28 days.
1.
Particle Size Customization: Low-Temperature Ultrafine Milling & Precision ClassificationAn inert gas-protected low-temperature jet mill was deployed, maintaining milling temperatures at 45–55°C to avoid thermal degradation of vitamin B12.High-precision air classifiers performed three rounds of repeated classification, yielding a final particle size D90=14.8μm (within the client’s 15±2μm requirement) with uniform distribution and no coarse particle agglomeration.
2.
3.
Purity & Impurity Control: Deep Purification & Green Conversion
4.
· Fermentation stage: Optimized Propionibacterium fermentation parameters (30°C temperature, pH 4.8–5.0, precise cobalt salt dosing) to boost crude vitamin B12 purity and reduce impurity formation.
· Purification stage: Nanofiltration membranes removed macromolecular impurities, followed by high-performance liquid chromatography (HPLC) deep purification to strip residual proteins, polysaccharides and pigments, raising the assay to 99.7% (surpassing the 99.5% threshold).
· Cyanidation stage: A green cyanidation process using low-toxic cyanating agents and vacuum cyanide removal replaced traditional highly toxic sodium cyanide, reducing free cyanide to 28ppm (well under the 50ppm limit). Chelating resin adsorption lowered lead, arsenic and mercury levels to ≤0.8ppm (meeting the ≤1ppm standard).
1. Batch Consistency: Fully Automatic DCS System & Full-Process Quality ControlProduction ran on a fully automatic DCS control system with real-time monitoring of temperature, pH, pressure and flow, limiting parameter fluctuations to ±0.1%.Four sampling and testing stages (post-fermentation, post-purification, post-milling, finished product) generated a full 12-item test report per batch, ensuring inter-batch assay deviation ≤±0.1% and particle size deviation ≤±0.8μm.
· EP 10.0 standard COA listing full data for assay, particle size, impurities and microbial limits.
· Scanned original copies of cGMP, ISO 22000, REACH registration, KOSHER and HALAL certificates.
· Full testing for free cyanide, heavy metals, residual solvents and microorganisms commissioned to an EU GLP laboratory, issuing official English reports accepted by Swiss customs.
· GSP Certificate of Origin (Form A) to secure Swiss tariff reductions.
· Non-GMO declaration, radiation-free statement and ingredient traceability reports enabling full supply chain traceability.
· Waste discharge permit, environmental testing reports and cobalt recycling qualification (92.5% cobalt recovery rate, aligning with circular economy standards) to verify eco-friendly production practices.
HiSiaddi coordinated the manufacturer to produce a 5kg customized sample with full supporting test reports. Testing conducted at the client’s Swiss laboratory yielded the following results:
· Assay: 99.7% (minimum requirement 99.5%)
· Particle size: D90=14.8μm (15±2μm specification)
· Free cyanide: 28ppm (maximum limit 50ppm)
· Heavy metals: Lead 0.7ppm, Arsenic 0.5ppm, Mercury 0.3ppm (all ≤1ppm)
· Microorganisms: Not detectedAll specifications were fully satisfied and exceeded the client’s expectations.
The initial 50kg customized cyanocobalamin batch was fully produced within the scheduled 28 days, subject to dual quality inspections (factory self-test + third-party sampling by HiSiaddi). Packaging used food-grade aluminum foil bags inside moisture-proof cartons with light-proof hermetic sealing (vitamin B12 degrades under light exposure), plus bilingual Swiss labels compliant with EU CLP regulations.
HiSiaddi managed full-process customs clearance in Switzerland. Complete documentation and compliant test results enabled smooth clearance without inspection or detention. The client’s warehouse confirmed full acceptance of quality, packaging and delivery performance with zero issues.
· Stable Repeat Orders: The client placed fixed monthly repeat orders of 150kg for customized high-purity cyanocobalamin with tailored particle size, designating HiSiaddi as its exclusive Chinese supplier long-term.
· Category Expansion: The client entrusted HiSiaddi with customization services for five additional high-end nutritional raw materials including high-purity folic acid, vitamin D3 and methylcobalamin, establishing full-category cooperation.
· Technical Collaboration: HiSiaddi and the manufacturer jointly provided formula optimization, stability testing and application technical support to assist the client in developing new premium products including sublingual lozenges and maternal-infant nutritional powders.
For overseas mid-to-high-end clients ordering customized vitamin B12 (cyanocobalamin), the core conflict lies between demanding high-end technical parameters, stringent compliance requirements and mass-production models adopted by domestic manufacturers. Conventional foreign trade firms merely act as messengers and lack capacity to resolve technical customization, compliance closure and flexible scheduling – resulting in unfulfillable client customization demands.
By integrating industry resources, delivering technical breakthroughs and closing full compliance loops, HiSiaddi accurately matched a leading flexible manufacturer, optimized processes jointly to break technical barriers, rapidly compiled EU-standard documentation to resolve compliance hurdles, and delivered small-batch customized products within 28 days from initial demand to final shipment, fully eliminating concerns over customization for mid-to-high-end clients.
For premium clients, a trade partner capable of concurrently solving technical, compliance and production capacity challenges delivers far greater value than ordinary suppliers – this core competitive advantage enables HiSiaddi to build deep partnerships with top Swiss clients and capture the high-end customized raw material market.
Contact HiSiaddi customer service for more customized service inquiries.
+86-13120989737 
info@hisiaddi.com 
English
