STS （Sodium toluenesulfonate）:
| Company: | BRAVO CHEMICAL CO., LTD.  |
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| Address: | No. 1-18, Lane. 3, Haojin Rd., Puyan Township, Changhua County 516 , Taiwan | |
| Telephone: | 886-4-882-0819 | |
| Fax: | 88-4-882-0619 | |
| E-Mail: |
              
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| URL: |
www.ptsa.com.tw |
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