Cross-Border E-Commerce Compliance & IP Protection Guide

Compliance is the #1 risk factor for cross-border sellers. AMZ123's most critical navigation section provides direct access to trademark databases, patent search tools, seller blacklists, and compliance service providers. One mistake can cost you your entire store — use these resources to protect your business.

🛡️ Intellectual Property

Trademark & Patent Search Tools

DatabaseCoverageSearch TypeBest For
USPTO (US Patent & Trademark Office)US trademarks & patentsFree trademark search, patent searchAmazon US, Walmart sellers
WIPO Global Brand DatabaseInternational trademarks (Madrid System)Multi-country trademark searchGlobal brand registration
EUIPO (EU Intellectual Property Office)EU trademarks & designsEU trademark searchAmazon EU sellers
Espacenet (European Patent Office)European & global patentsPatent search, patent familiesPatent clearance searches
JPO (Japan Patent Office)Japan trademarks & patentsJapan trademark/patent searchAmazon Japan sellers
China CNIPAChina trademarks & patentsChinese trademark/patent searchChinese manufacturing checks
🚨 Risk Management

Seller Blacklists & Safety Resources

AMZ123 maintains one of the most comprehensive sets of seller protection resources, including blacklists and law firm databases.

Review Manipulation Blacklist (测评黑名单)

Risk Prevention

Database of untrustworthy review brokers and black-hat tactics providers. Checking this list before engaging any service can prevent Amazon account suspension.

Follow-Seller Blacklist (跟卖黑名单)

Brand Protection

List of known repeat-offender follow-sellers who frequently infringe on listings. Proactively monitor and report to protect your Buy Box.

Patent Litigation Law Firm Database

Legal Defense

Direct links to US and Chinese law firms specializing in cross-border patent litigation. Essential for sellers facing patent infringement claims or seeking preemptive clearance.

Exploded Trademark Query (暴雷商标查询)

Due Diligence

Check if a trademark application is at risk of rejection or cancellation. Avoid building a brand around a trademark that may be invalidated.

📋 Compliance Requirements

Product & Tax Compliance Guide

MarketKey Compliance RequirementApplies ToService Provider
United StatesFCC, CPSC, FDA, EPA complianceElectronics, children's products, food contactTesting labs, compliance consultants
European UnionCE marking, UKCA, EPR, WEEE, RoHSMost product categoriesEuroTax, Notified Bodies
GermanyVerpackG (Packaging Act), WEEE, BattGAll products with packaging, electronicsEuroTax, Lizenzero
FranceEPR (Extended Producer Responsibility)All products with packagingEuroTax
UKUKCA marking, WEEE, Packaging WasteElectronics, packaged goodsAVASK, EuroTax
JapanPSE (Electrical Appliance and Material Safety)Electronics, electrical productsLocal compliance partners
🔒 Account Security

Multi-Account Security Checklist

  • Use dedicated IP per account (Ziniao Browser or NetEase Cross-Border Browser)
  • Never share login credentials between stores
  • Implement SP-API integration instead of shared sub-account access
  • Audit IP addresses every month — check for关联 risk
  • Maintain separate bank accounts per selling entity
  • Use different email domains for each store registration
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