• OSC GmbH Bitterfeld
•  +49 3493 73711
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• ORGANIC SOLUTIONS
•  ++ 33 474 902 546
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• Organica Feinchemie GmbH
•  +49 3494 636389
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• Otava Chemicals
•  +380 44 5222458
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• OM Group Precious Metals Chemistry
•  49618159 ext. 2404
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• Oxygen Healthcare Ltd.
•  +44 1223 437016
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• Odyssey Organics Pvt Ltd.
•  +91-251 - 2691342
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• Orgentis Chemicals GmbH
•  +49 (0)39482 355
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• onichem
•  86-411-84794022
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• Orient Stars
•  1-310-4833580
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• otto chemie pvt ltd
•  91-22-22070099
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• Oasis Fine Chem
•  91-2667-251651
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• ok packing manufacturing co.,ltd
•  86-0769-89238098
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• Oceanking Group
•  0086-532-85708715
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• Omkrown PharmaChem Pvt Ltd
•  91-831-2497086
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• Onward International Trade Co., Ltd.
•  +86-838-8301134
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• Okeanos Tech Co., Ltd.
•  +86-10-8895 1606
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• onicon chemical group
•  +86-717-6307507
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• Organix Inc.
•  +1-781 932 4142
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• Onyx Scientific Limited
•  +44 (0)191 516 6516
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• OTAVA
•  380 44 5222458 416 305 9979 (Canada)
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• Otsuka Chemical Co. Ltd.
•  (06) 6946 6231
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• Olly Chem Co., Ltd
•  +86 24 6225 9849
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• Orex Pharma Pvt., Ltd
•  91-22-2536 5317, 2533 3379.
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• Onbio Inc.
•  +1-(905)707-1241 ++1.905.780.1700
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• Oy Arbonova Ab
•  +358 2 215 4868
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• Oakwood Products, Inc.
•  803 739 8800
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• Ochem Chemical Co., Ltd
•  0572-2678666
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• Optima Specialty Chemical, LLC
•  203 929-2031
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• OM Group, Inc.
•  973-639-6719
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• OYC International, Inc.
•  978-470-1980
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• OXARC Inc.
•  1-800-765-9055
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• Orpegen Pharma
•  +49 6221 9105-0
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• Organic Dyestuffs Corporation
•  1-401-434-3300
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• OXIS International Inc
•  1-800-547-3686 650-212-2568
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• Obiter Research
•  217-359-1626 ext 113
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• oktarget polymer
•  865333256197
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• Orgachem Laboratories
•  00000
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• olinchloralkali
•  1-800-424-9300
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• omgi
•  800-519-0083
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• oglebaynorton
•  216-861-3300
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• Oh Shung Chemical Ind. Co., Ltd.
•  82-32-547-3321…6
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• oils-of-aloha
•  808-637-5620; 800-367-6010
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• omnova
•  330-628-6547
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• omya-na
•  33 1 40 58 44 00
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• ondeo-nalco
•  630-305-1000
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• oxeno
•  49 2365 49 5181
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• OISENS NIGERIA ENTERPRISES
•  234 805 635 0067
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• Organo Fine Chemical
•  91-22-22016968 / 22067521
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• ORCHEM INDUSTRIES PVT. LTD
•  91-40-27701047, 27701282
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