Before supplier approval
Define the manufacturing requirements for your collection.
Use these answers to prepare a supplier review and project brief. Confirm quantities, costs, testing and timing for the selected product before releasing an order.
What eyewear manufacturing projects can Sun Shing Optical review?
Sun Shing Optical is an eyewear manufacturer in Xiamen, China. Its OEM/ODM programs cover optical frames, sunglasses, sports eyewear, fishing sunglasses and safety eyewear. International eyewear, fashion, apparel, sports, outdoor and lifestyle brands can discuss custom collections and repeat production. Confirm the technical scope and market requirements for each proposed product.
How should a brand choose between OEM, ODM and private label development?
For OEM, provide your design package or reference sample and identify the specifications the factory must follow. For ODM, explain the product brief and the development support required. For private label adaptation, identify the proposed style and changes to color, lenses, logo and packaging. Agree on design rights, tooling ownership and permitted changes before development begins.
How are production quantities and color splits confirmed?
Provide the number of styles, colors and units per style and color, together with a launch order range and replenishment forecast. MOQ depends on the selected design, materials, components, lenses, packaging and tooling. Ask for a project-specific quantity proposal; catalog examples are development references rather than ready-stock offers.
What must be approved before bulk production starts?
Agree on the product specification, dimensions, materials, lens requirements, colors, branding and packaging. Record the approved sample reference, acceptance criteria, testing scope and the person responsible for approvals. Confirm changes in writing before production release; approval of a development sample alone does not confirm a production slot.
How should buyers assess testing and inspection requirements?
Identify the destination markets, intended use and applicable buyer requirements first. Request documents and test evidence relevant to the proposed model and materials, and agree on the inspection scope and acceptance criteria. For safety eyewear or specialist performance claims, confirm the applicable standards and supporting evidence before approval; do not assume a general factory document covers every product.
How are production lead time and delivery planned?
Share the target launch date, required delivery date, quantities and delivery terms with the named place. Confirm development and sample approvals separately from bulk production and transit. Materials, tooling, testing and approval timing affect the schedule, so obtain a written project-specific plan before committing to a launch date.
How should repeat orders and collection changes be managed?
Provide the expected replenishment timing, quantity range and any planned seasonal changes. Keep the approved specification and sample reference for comparison. Before a repeat order, confirm component availability, material or color changes, inspection requirements, pricing and delivery timing with the factory.
What information should a purchasing team send first?
Send your company or brand website, destination markets, product category, drawings or references, quantities by style and color, target launch date and expected repeat demand. Include packaging and testing requirements and identify undecided details. Use the production RFQ form to submit the project directly through this website.
Is this service suitable for ready-stock purchases or single-piece orders?
The enquiry process is for made-to-order OEM/ODM manufacturing, brand collections and repeat production. Sun Shing Optical does not handle ready-stock or clearance enquiries, single-piece consumer retail or dropshipping requests. Discuss a project-specific manufacturing quantity before requesting a production quotation.