• Yacoo Chemical Reagent Co.,Ltd
•   +86 512 67415997/ +86 512 65517080
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• Zhejiang XinNong Chemical Co., Ltd.
•   86-571-87799707
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• Wuhan Xinjing Chemical Co., Ltd.
•   +86-27-83412535, 15071365689
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• Xingcheng Chempharm Co., Ltd
•   +86-576-88525005/ +86-576-88886292
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• Zhejiang Xieshi Chemical industry Co.,ltd.
•   +86-21-6841 6909
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• XIANG DING CHEMICAL INTL CO.,LTD
•   86-25-84293857/ 86-25-84293351
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• Xena International, Inc.
•   630-587-2734
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• Wuhan Star Trading Co.,Ltd
•   +86-27-83642615/ +86-27-83607103
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• Wuhan Sinon Pharma L.P.
•   +86-27-87405969
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• Oak-Bark Corporation
•   910-762-5800
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• Shanghai World-Prospect Industrial Co. Ltd.
•   021-54277770-200
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• World Metal, LLC
•   877-3Metals/ 281-491-7474
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• WJF Chemicals Co.
•   +865708660431
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• CHANGZHOU WEIJIA CHEMICAL CO.,LTD.
•   +86 519 86805358
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• WITEGA Laboratorien Berlin-Adlershof GmbH
•   +49(0)30-63922195
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• Wintersun Chemical
•   800-930-1688
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• Wilke Resources, Inc.
•   913 438 5544/ 800-779-5545 Ext. 107 (Nutritional Ingredients)
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• Wilke International, Inc.
•   913 438 5544
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• WILD Flavors, Inc.
•   859-342-3600/ 888-WILD-FLAVORS
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• Welch, Holme & Clark Co., Inc.
•   973-465-1200
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• Wuhan Bright Chemical Co., Ltd.
•   86-27-85803473/ 86-27-85556253
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• Westco Chemicals Inc.
•   818.255.3655
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• WEGO CHEMICAL & MINERAL CORP.
•   516-487-3510
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• WUHAN UNIVERSITY SILICONE NEW MATERIAL CO., LTD.
•   86-27-68754736
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• Watson Industries, Inc.
•   909-718-0866/ 888-5WATSON
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• Waterstone Technology LLC
•   317-644-0862/ 317-218-7464
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• Anhui Wanhe Pharmaceutical Co., Ltd.
•   86-021-53853363
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• ATI Wah Chang
•   888-926-4211/ 541-967-6977
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• Wacker Fine Chemicals
•   877-922-2436
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• Wacker Chemie AG
•   +49 89 6279-1484/ 800-293-7023 (Biochem)
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• Volant-Chem Corp.
•   86-22-23261245
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• VJCHEM CANADA INC.
•   800-985-2436/ 905-488-7145
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• Viwit Pharmaceutical Co., Ltd.
•   86-21-37775618
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• Viva?Corporation
•   91 22 23001389
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• VITAL-CHEM ZHUHAI CO., LTD
•   86-756-3337592/ 86-756-3374435
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• Vigon International, Inc.
•   877-VIGON-39/ 570-476-6300
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• Vesino Industrial Co., Ltd.
•   +86 22 81289555/ +86 22 27455635
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• Hangzhou Verychem Science And Technology Co., Ltd.
•   +86-571-8816 2785/ +86-571-8816 2786
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• Vertellus Specialties Inc.
•   317-248-6448/ 800-777-3536
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• Verichem, Inc.
•   412-331-7299
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• Genovique Specialties
•   847-298-9000
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• Veckridge Chemical Co., Inc.
•   973-344-1818
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• Vast Spring Enterprise Co., Ltd.
•   +886-2-2828-1710
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• VARDA Biotech (P) Ltd.
•   +91-22-6693 5686 / 2673 0141 / 2673 4258
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• VanDeMark Chemical Inc.
•   716-433-6764/ 800-836-8253
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• Yantai Valiant Fine Chemicals Co., Ltd
•   +86-535-6374484
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• US Petrochemical Industries, Inc.
•   713-871-1951
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• U.S. Chemicals
•   203-966-8777
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• Hebei Univtech Co.,Ltd.
•   +86-316-7861192
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• Univar USA Inc.
•   800.234.4588
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