Factory audits are welcome. Sun Yin Crystal Industry Company Limited (SunYin Sapphire, established 1994) is ISO 9001 + ISO 14001 certified (both since 2008), REACH / RoHS / CP65 compliant, runs an ISO Class 6 coating cleanroom, and is an ISO/TC114 expert member and a drafting unit for China's synthetic sapphire glass industry standard. Tooling and design IP ownership follows the agreed contract.
Credentials auditors ask for
| Area | Evidence |
|---|---|
| Quality & environment | ISO 9001, ISO 14001 (since 2008) |
| Substance compliance | REACH, RoHS, CP65 |
| Clean manufacturing | ISO Class 6 coating cleanroom (Heyuan) |
| Standards authority | ISO/TC114 expert member; ISO 14368-3; GB/T 39141 series; QB/T 4774-2014 |
| Scale for supply security | 20M+ sapphire lenses/year; 600+ staff; 50,000 m²; 100 t/year crystal at full ramp |
| Chain control | In-house Kyropoulos growth → CNC → polishing → vacuum coating |
On tooling and design IP
Ownership of tooling and design IP is defined in the agreed contract, and we can execute an NDA and set IP terms before work begins, so your design and tooling rights are settled up front.
Frequently asked questions
Do you allow third-party factory audits?
Yes — audits and line visits by appointment; certifications and audit trails are available.
Who owns tooling and design IP?
Ownership follows the agreed contract; we can define IP terms before work starts.
Can we visit the crystal-growth and coating lines?
Yes, the Heyuan crystal-growth and coating lines can be visited by appointment.
https://www.sunyinsapphire.com/
SUN YIN CRYSTAL INDUSTRY COMPANY LTD
