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Seller Verification & Listing Standards Policy
Effective Date: March 15, 2026 | Version 1.0
Purpose
This policy establishes the standards that all Sellers must meet to access and maintain an active presence on the ExuraBio Life Science Surplus Materials Exchange. These standards are designed to protect Buyers, maintain the integrity of the Platform, and help confirm that all listed materials and equipment are accurately represented, legally transferable, and appropriately documented.
Typical Sellers on the Platform include biopharmaceutical manufacturers with surplus process materials from changed production campaigns, biotech companies post-clinical-trial with leftover manufacturing inputs, CDMOs and CMOs clearing excess process materials, research institutions with unused grant-funded materials, and distributors with overstock. Typical Buyers include early-stage biotech startups, contract research organizations (CROs), academic research labs, and life science organizations sourcing materials at below-catalog pricing.
Seller Eligibility Requirements
To register as a Seller on ExuraBio, applicants must:
• Be a legally registered business entity or a duly authorized institutional seller (e.g., university surplus program, government laboratory);
• Provide a valid federal Employer Identification Number (EIN) or equivalent tax identification;
• Maintain a physical place of business and verifiable contact information;
• Agree to and remain in compliance with the ExuraBio User Agreement and all applicable Platform policies.
• Demonstrate the legal authority to sell the categories of products they intend to list.
Verification Process
All prospective Sellers may be subject to the following verification process before listings are activated:
Step 1 — Identity and Business Verification
• Submission of government-issued business registration documents;
• Verification of EIN or tax ID via third-party service;
• Confirmation of registered business address.
Step 2 — Regulatory Compliance Review
• Review of any applicable licenses or permits required for the transfer of listed product categories;
• Review of institutional affiliations for academic, government, or CDMO Sellers;
• Certification that the Seller complies with applicable export control laws (e.g., EAR, ITAR) where relevant;
• Review of Seller attestations regarding access to original certificates of analysis (COAs) and lot documentation for materials intended to be listed.
Step 3 — Ongoing Monitoring
• Annual re-verification of business status and regulatory compliance.
• Periodic review of Buyer feedback, dispute history, and listing accuracy.
• ExuraBio reserves the right to request updated documentation at any time.
Listing Standards
All product listings must meet the following standards before publication on the Platform:
Required Listing Information
All listings must include the following information before publication on the Platform. Incomplete listings may be rejected or held for completion before publication.
• Product name, manufacturer name, and catalog or part number (if applicable)
• Lot number or batch number, for all biological materials, media, buffers, reagents, and raw materials
• Detailed and accurate product description, including grade, formulation, concentration, purity specifications (where applicable), and intended use category
• Asking price and available quantity with unit of measure
• Storage conditions history, Sellers must attest in writing to the storage conditions under which the product has been maintained, including temperature, humidity, and any known deviations from manufacturer-specified storage requirements
• Expiration date or use-by date, required for all biological materials, media, reagents, and materials with defined shelf lives; for equipment, last-service date and calibration records where available
• Original Certificate of Analysis (COA), required for all biological materials, media, buffers, reagents, process chemicals, and raw materials; Sellers must upload or link to the original manufacturer's COA for the listed lot
• Manufacturer specification sheet or instrument data sheet for equipment and instruments
• Country of origin
• Accurate photographs of the product, packaging, lot labels, and COA cover page where condition and identity are visually verifiable.
Accuracy and Completeness
• Sellers must ensure all the information listed is accurate, complete, and not misleading
• Listings must not contain false or unsubstantiated claims regarding product performance, purity, or regulatory status
• Sellers are responsible for updating listings to reflect material changes in availability, specification, or pricing
Prohibited Listing Practices
• Listing products under a manufacturer's name or brand without authorization
• Representing used or refurbished equipment as new without explicit disclosure
• Omitting known defects or material quality limitations
• Price manipulation or coordinated pricing with other Sellers
Seller Performance Standards
Sellers are expected to use commercially reasonable efforts to maintain the following minimum performance metrics:
• Order fulfillment rate: 95% or higher
• On-time shipment rate: 90% or higher
• Buyer dispute rate: below 2%
• Response to Buyer inquiries: within 2 business days.
ExuraBio reserves the right to suspend or terminate Seller accounts that consistently fail to meet these standards, following notice and an opportunity to cure where practicable.
Suspension and Termination
ExuraBio may immediately suspend or permanently terminate a Seller account for:
• Providing false or misleading information during verification
• Listing prohibited products (as defined in the Product Scope Definition)
• Repeated violations of listing standards
• Regulatory non-compliance, including loss of required licenses
• Fraudulent activity or misrepresentation to Buyers
• Any activity that poses a risk to the safety or integrity of the Platform or its Users
Suspended Sellers will generally receive written notice of the basis for suspension and up to 14 days to submit a written appeal. Termination decisions will be final, subject only to ExuraBio’s review of any timely submitted written appeal.