- SGS Hong Kong Ltd.
- Address:2 On Yiu St,
- Hong Kong Quality Assurance Center Limited
- Address:6 / F RICKY CTR 36 CHONG YIP ST KWUN TONG KOWLOON
- Qualitech Consultancy Ltd.
- Address:Unit 11, 20 / F. , International Trade Centre, 11-19 Sha Tsui Rd
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