- Integration Systems Corporatio
- Address:S16 33F One IFC, Harbour View, Central
- Speedy (HK) Ltd.
- Address:8 Tsing Yeung Circuit
- Keytech Development Company
- Address:Room E05, 8 / F, Hop Hing Industrial Building, 704 Castle Peal Road, Cheung Sha Wan, Kowloon
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