Sun Yin Crystal Industry Co., Ltd.
Sapphire crystal components for watches and smart devices
Hong Kong-based manufacturer of sapphire watch crystals and optical sapphire components for both traditional and smart watches. Supplies OEM sapphire glass to major Swiss, Japanese, and Chinese watch brands as well as consumer electronics manufacturers.
- Type
- Manufacturer
- Location
- Hong Kong
- Founded
- 1975
- Website
- sunyin.com
- Categories
- Watches, Consumer Electronics
- Markets
- Hong Kong, China, Japan, South Korea, United States, Germany
Verified facts
- corporate-mail-on-domain (green), checked 2026-08-09 Mail server of the company domain
- domain-registered (green), checked 2026-08-09 Domain registry record
- debarment-clear (green), checked 2026-08-09 OpenSanctions
- sanctions-clear (green), checked 2026-08-09 OpenSanctions
Claimed certifications
- ISO 9001, Quality Management IAF CertSearch
Import rules for these goods
- EU REACH restricts lead, cadmium and nickel in jewellery and in items with prolonged skin contact; non-compliant articles are stopped at the border. ECHA (REACH)
- Electronics for the EU need CE marking incl. RoHS substance limits, and producers must register for WEEE take-back in each member state of sale. European Commission (CE)
- Electronics for the US market need FCC equipment authorization under 47 CFR Part 15, which covers unintentional radiators such as switch-mode power supplies, not only radio devices. US FCC (Part 15)