Eyewear supplier evaluation
Evaluate an eyewear manufacturing supplier for your brand.
Sun Shing Optical, officially 尚昇光学（厦门）有限公司, is an OEM/ODM eyewear manufacturer in Xiamen, China. This page helps purchasing teams define the evidence and commercial terms to review before approving a production supplier.
For established eyewear, fashion, apparel, sports and outdoor brands planning custom collections and repeat orders. Begin with your product specification, destination markets and production forecast.
Supplier approval
Check the supplier against the work your collection requires.
Review the evidence for the selected product and confirm which operations and responsibilities are included in the quotation.
Purchasing review
Questions for your supplier approval meeting.
Use the same requirements when comparing factories and quotations.
What should a brand verify before approving an eyewear supplier?
Match the supplier identity and manufacturing location to company documents, review the processes needed for the selected product, and agree on sample approval, inspection criteria and production responsibilities. General factory claims do not replace evidence for your project.
Which documents should a purchasing team request?
Request a project quotation, product specification, approved sample reference, production schedule and inspection plan. Agree on any model-specific testing and destination-market requirements before production release. Availability, scope and confidentiality of supporting records must be confirmed with the supplier.
How should a brand compare production quotations?
Compare the same specification, quantities per style and color, tooling, lenses, packaging, testing, inspection and delivery terms. Confirm the named delivery place, currency and payment schedule. A lower unit price alone does not establish equivalent scope.
How are MOQ and capacity confirmed?
Quantities, color splits, materials, tooling and production dates are confirmed for each project. Discuss the launch order and replenishment forecast together; a published factory capacity or reference MOQ does not reserve a production slot.
Is this a ready-stock or retail sourcing service?
This supplier evaluation is for brand teams planning custom eyewear development and made-to-order production, including eyewear, fashion, apparel, sports and outdoor brands. It is not a ready-stock, clearance, dropshipping or one-piece retail offer.
Production enquiry
Send a brief your purchasing team can evaluate.
- Brand website, product category and intended wearer.
- Target markets, frame and lens specifications, branding and packaging.
- Launch quantities per style and color, expected repeat demand and target date.
- Required inspection, testing, delivery terms and supplier approval documents.
MOQ, cost, testing scope and lead time depend on the confirmed project. This is a custom production enquiry rather than a request for stock inventory.
Review the factory and production program.
Use the factory page for production photos, the brand page for collection scope and the sourcing guide for development approvals.