
7 Sourcing Red Flags: Avoiding Material Substitution, Payment Fraud, and Fake Certifications in Stone Imports
Navigating the complex B2B stone market requires a rigorous verification strategy to combat sophisticated sourcing scams. This technical guide identifies seven critical red flags, ranging from extreme price discounts (50% below market) and material substitution (concrete composites for natural stone) to payment fraud linked to bank account mismatches. We detail essential verification protocols for 2026, including the authentication of Type 3.2 Material Test Certificates (MTC) and the use of the IAF global directory for ISO/ASTM certification audits. For procurement teams, mastering these technical and financial markers is essential to securing high-quality stacked stone while protecting the supply chain from billion-dollar fraud risks.




