- Boomax (H.K.) Co., Ltd
- Address:Unit 3, 4 / F, Hung To Ind. Bldg, 80Hung To Rd, Kwun Tong, Kln.
- Suntan Industrial Electronic Company
- Address:Unit I, 4 / F. , Dormind Industrial Building, 13 Yip Fung Street
- Suntan Capacitors
- Address:13 Yip Fung Street
- VTRONS TECHNOLOGY CO., LIMITED
- Address:SHEUNG WAN,
- Filsonic Electronics Company Ltd.
- Address:BLOCK E1, 4TH FLOOR, HOI BUN IND BLDG
- Filsonic Electronics Company Limited
- Address:Floor 4, Block E1, Hoi Bun Ind. Bldg, 6 Wing Yip St.
- Suntan international capacitor manufacturer
- Address:Unit I, 4 / F. , Dormind Industrial Building, 13 Yip Fung Street, Hong Kong
- Wong Chung Ping
- Address:Flat A, 3 / F. , Beauty Mansion, 69 Kimberley Road,
- HK Suntan Capacitors Company Limited
- Address:Unit I, 4 / F. , Dormind Industrial Building,
- Elecsound PCB
- Address:11 / F. , Front Block, Hang Lok Building, 128-130 Wing Lok St. , Sheung Wan,
- Elecsound potentiometer ltd
- Address:Unit I, 9 / F. , Dormind Industrial Building, 13 Yip Fung Street, Fanling, New Territories,
- Zhang Dong Electronics Factory
- Address:Room 8 17/F., New Trend Centre, 704 Price Edward Road East, San Po Kong, Kowloon
- Elecsound PCB Co. Ltd
- Address:11 / F. , Front Block, Hang Lok Building, 128-130 Wing Lok St. , Sheung Wan, HK
- Elecsound Capacitors Co, Ltd
- Address:Unit 19-21,12/F Corporation Park
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