- KOWA AIR FILTER INDUSTRY LIMITED
- Address:No. 13, Lane 28,Sanhe Rd., Dayuan Township, Taoyuan Country, 337 Taiwan
- Yi Lin Metal Machinery Industrail Co., Ltd.
- Address:648 Shuiyuan Rd.,
- Tailine Enterprise Co Ltd
- Address:2 Tianchi Lane, Baisha Tsuen, Huatan Shiang
- Microteck Corp.
- Address:No. 8, Sec. 2, Yongpu Road,
- TAIWAN GRACE INTERNATIONAL CORPORATION
- Address:5F., No.16-2, Sec. 2, Zhongyang S. Rd., Beitou Dist., Taipei City 112, Taiwan (R.O.C.)
- Minipore Co., Ltd
- Address:No. 1, Sec. 1, Zhongxiao E. Rd. , Zhongzheng Dist.
- Rainbow Filter Co.,Ltd
- Address:Seaview Commercial Building, 29 Con Road West, Taiwan
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