| Company | Phone | Phone 2 | Fax |
| 3B (Wuhan) Scientific Corporation | +86 27-88063677 | +86 27-88063655 | +86 27-88063655 |
| 3Way Pharm Inc. | 86-21-51613951 | 86-21-51613950 | 86-21-51613951 |
| Abclabtory Scientific Co., Ltd | +86-571-86624699 | +86-18069802331 | +86-571-86624698 |
| Acemay Biochemicals | 86-373-3686 002 | | 86-373-3686 003 |
| Aemon Chemical Technology Co.Limited | 86-755-86198205 | | 86-755-86198205 |
| AgileBioChem Co., Ltd | | | |
| Aktin Chemicals, Inc. | +86-28-85159085 | | +86-28-85152372 |
| Amadis Chemical Co., Ltd. | 86-571-89925085 | | 86-571-89925065 |
| Angene International Limited | +86 (025)57626171 | | |
| ANSHAN HIFI CHEMICALS CO., LTD. | +86-412-8416469 | | :+86-412-8417727 |
| Aopharm | 86-311-66600578 | 86-311-66600678 | 86-311-66600576 |
| Aromalake Chemical Corporation Limited | +86-0571-5710-4378 | | +86-0571-5710-4378 |
| Aromsyn Co.,Ltd. | +86-133 3602 4896 | +86-571-85585865 | +86-571-85585865 |
| Arromax Pharmatech Co., Ltd. | | | |
| Asambly Chemicals Co.,Ltd. | +86 25 84691959 | +86-18951758688 | +86 25 84691686 |
| AstaTech (Chengdu) BioPharmaceutical Corp. | +86-28-82666846 | +86-28-82666559 | +86-28-82666739 |
| Atomax Chemicals Co., Ltd. | +86-755-3323-9182 | | +86-755-3323-3381 |
| Beijing Pure Chem. Co.,ltd. | +86 10-83993285 | | +86 10-63370219 |
| BEIJING SHLHT CHEMICAL TECHNOLOGY | +86 10-68835642 | | +86 10-68835647 |
| Beijing Smart Chemicals Co., Ltd | +86 10-68655719 | | +86 10-68655719 |
| Beijing Stable Chemical Co.,Ltd | +86-10-63785052 | | +86-10-63785049 |
| Beijing Sunpu Biochem.& Tech. Co., Ltd. | +86 10 6357 1196 | +86 15901082616 (mobile) | +86 10 6357 1197 |
| Bellen Chemistry Co., Ltd. | +86 10 60400361 | +33 474 5880 11 (Europe) | +86 10 89475062 |
| BEYO CHEMICAL CO., LTD. | +86-25-84730627 84730637 | | +86-25-84730697 |
| Beyond Pharmaceutical Co., Ltd | +86-571-8195-3185 | | +86-571-89086206 |
| Binhai Gaolou Chemical Co., LTD | +86-515-84388001 | | +86-515-84388006 |
| Bocchem | 86-931-7652311 | | 86-931-7653675 |
| Boroncore LLC | +86 571 85 58 67 53 | | |
| BTC Pharmaceuticals Co. LTD | +86 15050603958 | +86-513-82725606 | |
| Cangzhou Goldlion Chemicals Co., Ltd | +86 13582748294 (mobile) | +86-13315721466, +86-317-5304268, +86-317- 5698010 | +86-317-5304268 |
| Capot Chemical Co.,Ltd | +86-571-85586718/85825679 | | +86-571-85864795 |
| CBS TECHNOLOGY LTD | +86 551 5580661 | | +86 21 51901682 |
| Cerametek Materials (ShenZhen) Co., Ltd. | +86-755-2324.2554 | | +86-755-2342.0305 |
| Changchun BC&HC Pharmaceutical Technology Co., Ltd | +86 431-80871788 (fixed) | +86 15804318207 (mobile) | +86-(431)-88417879 |
| Changzhou Carbochem Co.,Ltd | +86-519-86595536 | +86-139-6295-7477 (24 hours) | +86-519-86595296 |
| Changzhou Hengda Biotechnology Co., Ltd. | +86-519-85265229 | +86-180 15028189 | +86-519-85266229 |
| Changzhou LanXu Chemical Co.,ltd. | 86-519-86330911 | 86-519-86190963 | 86-519-86330911 |
| Changzhou Standard Chemicals Co.,Ltd. | | | |
| CHANGZHOU WEIJIA CHEMICAL CO.,LTD. | +86 519 86805358 | | +86 519 88836898 |
| CHANGZHOU WUJIN LINCHUAN CHEMICAL CO.,LTD | +86 519 86461196 | | +86 519 86463703 |
| Chem-Stone Co., Ltd. | 86-20-82185713 | | 86-20-82185696 |
| Chemheart Chemicals Co.,Ltd | 86-573-82689181 | | 86-573-82689183 |
| Chemner Pharma | 86-23-62912751 | | 86-23-62609121 |
| Chemtour Biotech (Suzhou) Co.,Ltd | +86-512-65473930 | | +86-512-82177030 |
| Chemvon Biotechnology Co. Ltd. | +86-21-50790412 | +86-21-31268550-8008 | +86-21-50790419 |
| Chengdu Aslee Biopharmaceuticals, Inc. | 86-28-85305008 | 86-18608018419 | 86-4000210878-186 |
| Chengdu Pukang Biotechnology Co.,Ltd | +86-28-82550498 | | +86-28-82550468 |
| ChinaPeptides Co.,Ltd. | 86-21-50795728 | 86-512-63930660 | 86-512-63009934 |
| Chiralblock Bioscience LLC | 86-571-88487672 | 86-15394264172 (mobile) | |
| Cool Pharm Ltd | +86(21)58581007 | | +86(21)50966098 |
| CoreSyn | +86-571-86626709 | +86 181 5714-2896 | |
| Dalian Richfortune Chemicals Co., Ltd | | | |
| Daming Changda Co,Ltd (LLBCHEM) | +86-310-5102000 | | +86-310-5102288 |
| DATO Chemicals Co.,Limited | 86.21.50189162 | | 86.21.50189163 |
| DC Chemicals | +86-21-58447131 | | +86-21-61642470 |
| Depont Molecular Co.,Ltd. | +86-25-84215208 | | +86-25-84217866 |
| DSL Chemicals Co Ltd | +86 21 6352 9955 | | +86 21 6352 9922 |
| Elsa Biotechnology Co.,Ltd. | 86-025-84106591 | | 86-15850663793 |
| Enze Chemicals Co.,Ltd | +(86)-(571)-8865-5925 | +86-013750849205 (mobile) | +(86)-(571)5627-7156 |
| ETA ChemTech Co Ltd | +86-021-37623285 | | |
| FEIMING CHEMICAL LIMITED | +86-755-8523 2577 | | +86-755-8459 4577 |
| Finetech Industry Limited | 86-27-87772287 | | 86-27-87772287 |
| Fluoropharm Co.,Ltd | +86 133-3603-4509 | | +86 133-3603-4509 |
| Fond Chemical Co.,Ltd | +86-510-66561189 | | +86-510-66561189 |
| Gansu Research Institute of Chemical Industry | +86-931-8692528 | | +86-931-8690878 |
| Guangzhou Topwork Chemical Co., Ltd. | +86-20-87317062 | +86-20-87317092 | +86-20-87317061 |
| Hallochem Pharma Co.,Ltd. | +86-23-67030808-8820 | | +86-23-67030809 |
| Hanghzou Fly Source Chemical Co.,Ltd | +86 15168300983 | | |
| Hangzhou Best Chemicals Co., Ltd. | +86-571-88480018 | +86-571-88480028 | +86-571-88482010 |
| Hangzhou Dayangchem Co., Ltd. | +86-571-8893-8657/ 8893-8651 | | +86-571-8893-8652 |
| Hangzhou Hairui Chemical,ltd | +86 571 8669-1155 | | +86 571 8669-1154 |
| Hangzhou Huajin Pharmaceutical Co.,Ltd. | +86 571 87011802 | | +86 571 87075390 |
| Hangzhou J&H Chemical Co., Ltd. | +86-571-87396430 | +86-571-87396432 | +86-571-87396431 |
| Hangzhou J&H Chemical Co., Ltd. | +86-571-87396430 | +86-571-87396432 | +86-571-87396431 |
| HANGZHOU KEYINGCHEM CO., LTD | +86-571-85378921 | +86-15336536056 | +86-571-85378913 |
HANGZHOU MEITE CHEMICAL CO.,LTD
HANGZHOU MEITE INDUSTRY CO.,LTD | 86 571 88026825 | 86 571 88283817 | 86 571 88282557 |
| Hangzhou Ocean chemical Co.,Ltd | +86-571-88025872 | +86-13588138709 (mobile) | +86-571-88025871 |
| Hangzhou Pharma & Chem Co., Ltd | 86 571 87040515 | | 86 571 87214761 |
| Hangzhou Tino Bio-Tech Co., Ltd | +86-571-86687291 | +86-13588246609 | +86-571-87750980 |
| Hangzhou Trylead Chemical Technology Co.,Ltd | +86-571-87086220 | | +86-571-87012927 |
| Hangzhou Verychem Science And Technology Co., Ltd. | +86-571-8816 2785 | +86-571-8816 2786 | +86-571-8816 2787 |
| Hangzhou Yuhao Chemical Technology Co., Ltd | +86-571-82693216 | | +86-571-82880190 |
| HEBEI AOGE CHEMICAL CO., LTD. | +86-310-4915333 | | +86-310-7038008 |
| HEBEI DAPENG PHARM&CHEM CO., LTD. | +86-317-7298678 | +86-317-7238109 | +86-317-7238866 |
| Hefei Hirisun Pharmatech Co., Ltd | +86-0551-62678551 | | |
| HENAN YUCHEN FINE CHEMICAL CO., LTD | +86-374-5699606 | +86-374-5699939 | +86-374-5699958 |
| Hi-Tech Chemistry Corp | 86-519-86626038 | | 86-519-86629716 |
| Hongding International Chemical Industry (Nantong) co., ltd | +86 513-85600707 | | +86 513-85600202 |
| Hongene Biotechnology Limited | 86-21-64757213 | 86-21-54971054 | 86-21-64700613 |
| IFFECT CHEMPHAR CO., LTD. | 0086 (25) 84679300 | | 0086 (25) 84270111 |
| Jiangsu Guotai International Group Co.,Ltd. | 86-512-58671998 | | 86-512-58671120 |
| JIANGXI TIME CHEMICAL CO.,LTD | +86-794-7183888 | +86-13867635890 | +86-794-5269668 |
| Jianshi Yuantong Bioengineering Co.,Ltd. | +86-755-27819896-103/27806126 | | +86-755-27806129 |
| Jiaxing Nanyang Wanshixing Chemical Co., Ltd. | +86 573 8558 3599 | | +86 573 8553 3289 |
| Jinan TaiFei Science Technology Co., Ltd | 13608927551 | 86-(0531)87968558 | |
| Jinan YSPharma Biotechnology Co., Ltd | +86-531-8233381 | +86-18678657237 | +86-531-8233391 |
| JINCHANG HOLDING LIMITED | +86-755-25181046/25181264 | | +86-755-82179705 |
| Jinhua Qianjiang Fine Chemical Co.,Ltd. | | | |
| Jinjiangchem Corporation | 86-21-59789751 | | 86-21-59789752 |
| Jiurui Biology & Chemistry Co.,Ltd. | +86-744-8561603 | +86-13487846182 (mobile) | +86-744-8561910 |
| Jlight Chemicals Company | +86-573-83621335 | +86-573-83285179 | +86-573-83285196 |
| JQC China Pharmaceutical Co,LTD | +86-18502500331 | +86-0913-4356088 | +86-0913-4356066 |
| Junwee Chemical Co.,Ltd. | 86-571-85808638 | 86-571-85808637 | 86-571-85808639 |
| Kaifute (Tianjin) Chemical Co., Ltd. | | | |
| Kaiyuan Chemicals Co., Ltd. | +86-731-3584385 | +86-731-3584515 | +86-731-3584050 |
| Kinfon Pharmachem co.,ltd | +86-23-86500814 | +86-(0)136-1830-6260 | +86-(0)136-1830-6260 |
| King Scientific | +86 (025)57626171 (China) | 516-439-3436 (USA) | |
| Kingreat Chemistry Company Limited | 86-592-2299609(Dir)/3/4 | | 86-592-2299601 |
| Labseeker | +86 512 63008651 (China) | 858-226-7474 (USA) | +86 512 63006936 |
| LakeStar PharmaTech | +86-512-6397-0158 | +86-180-1810-8880 (mobile) | +86-512-6397-1078 |
| Langfang Beixin Chemical Company Limited | 86 316 6566888 | 86-18631617000 (mobile) | 86 316 6566999 |
| Leap Labchem Co.,Ltd | +86-571-87756549 | | +86-571-87755464 |
| Leap Labchem Co.Ltd | +86-571-87756549 | | +86-571-87755464 |
| Lianyungang New-Xinlong Chemical Co.,Ltd | 86-518-85621080 / 85621518/85631318 | 86-15861285673/18795507147 | 86-518-81066388 |
| LON CHEMICAL | 86-519-85226837 | | |
| LVYU Chemical Co., Ltd. | +86-523-84506864 | | +86-523-84506952 |
| MASCOT I.E. Co.,Ltd | +86 519 8501 0319 | +86 519 8501 0369 | +86 519 8501 0366 |
| Molcore | +86-17767106207 | | |
| NANCHANG LONGDING TECHNOLOGY DEVELOPMENT CO.,LTD | 86-791-6170537 | | 86-791-6170517 |
| Nanjing Boyuan Pharmatech Co., Ltd | 86-025-58649566 | | 86-025-58649599 |
| Nanjing Chemical Material Corp. | +86 25 83172807 | | +86 25 83304509 |
| Nanjing Chemlin Chemical Industry Co.,Ltd. | +86 25 8369-7070 | | +86 25 8345-3275 |
| Nanjing Chemlin Chemical Industry Co.,Ltd. | +86 25 8369-7070 | | +86 25 8345-3275 |
| Nanjing FineTech Chemical Co.,Ltd | 86-25-5207-8417 | | 86-25-8618-1057 |
| Nanjing Fubang Chemical Co.,Ltd. | 86-25-86273498 | | 86-25-83179299 |
| Nanjing Legend Pharmaceutical & Chemical Co., Ltd. | +86-25 83172486 | | +86-25 83172489 |
| Nanjing Peptide Biotech Ltd. | 86-25-58361106-805 | | 86-25-58361106-806 |
| Nanjing Raymon Biotech Co., Ltd | +86 (025) 52181296 | +86 15850526660 | |
| Nantong Baihua Bio-Pharmaceutical Co.,Ltd | +86-513-85982855 | | +86-513-85915507 |
| Nantong Qihai Chemicals Co., Limited | 86-513-81183473 | 86-513-81183473 | 86-513-81183373 |
| Nebula Chemicals Co.,Ltd. | +86-531-55515146 | | |
| Neostar United Industrial Co., Ltd. | +86-519-85557386 | | +86-519-85557389 |
| Nextpeptide Inc. | +86 (0)571 816 123 35 | | |
| NINGBO V&P CHEMISTRY | 86-574-87434756 | 86-574-87435027 | 86-574-87434735; 56704282 |
| Ningxia Darong Chemicals & Metallurgy Co., Ltd. | 86-952-2179751 | | 86-952-2179745 |
| NovoChemy Ltd. | | | |
| Novolite Chemicals Co.,Ltd. | :86-21-54391929, (Direct) 64109415 | | 86-21-54292365 |
| Onichem Specialities Co., Ltd. | +86-411-62636091 | +86-1333-2288698 (mobile) | +86-411-62636092 |
| Orichem international Ltd. | 86-571-85270505 | | 86-571-85270303 |
| Porse Fine Chemical Co.,LTD | +86-18666003216 | | |
| Psyclo Peptide, Inc. | +86-21-6718 1678 | +86-177-0189 6478 (mobile) | +86-21-6718 1678 |
| Qingdao Yimingxiang Fine Chemical Technology Co.,Ltd | 86-532-80682117 | 86-532-80682118 | 86-532-80682116 |
| Qinmu fine chemical Co.,Ltd. | 86-531-83166650 | 86-18653153064 | |
| Qshi Industry (Shanghai) Co.,Ltd | 86-21-68908772 | 86-18116298772 (mobile) | 86-21-68908792 |
| Quzhou Ruiyuan Chemical Co.,Ltd | | | |
| RennoTech Co., Ltd. | | | |
| Richap Chem | +86 10 6444 6226 | | +86 10 6445 5595 |
| Ronas Chemicals Ind.Co.,Ltd. | +86-28-8608-2869 | +86-28-8608-0938 | +86-28-8608-2869 |
| Rosewell Industry Co., Limited | 86-519-86202821 | 86-15295149077 (mobile) | 86-519-82059043 |
| Rudong Zhenfeng Yiyang Chemical Co., Ltd. | | | |
| SAGECHEM LIMITED | 86-571-86818502 | 86-571-86818503 | 86-571-86818503 |
| Shandong Guangtongbao Pharmaceuticals Co., Ltd. | 86-536 3223585 | | 86-536 3235805 |
| Shandong Shengda Technology Co., Ltd. | 86-21-68968888 | | 86-21-68968888 |
| Shangfluoro | +86-17301729617 | +86-13621665026 | |
| Shanghai Activated Carbon Co., Ltd. | 86-21-54721830 | 86-17621336655 | |
| Shanghai AQ BioPharma | 86-21-51370935 | | 86-21-51079710 |
| SHANGHAI ARCADIA BIOTECHNOLOGY LTD. | +86-21-61353236 | | |
| Shanghai Brothchem Bio-Tech Co.,Ltd | +86-21-64236937 | | +86-21-54297960 |
| Shanghai Caerulum Pharma Discovery Co., Ltd. | +86-21-69018966 (ext 803) | | |
| SHANGHAI CHEMHERE CO., LTD | 86-21-26607989 | | 86-21-50790120 |
| Shanghai ChemVia Co., Ltd | +86-21-6875-8016 (Sunny Liu) | +86-21-6875-8025 (Amy Qin) | +86-21-6875-8026 |
| Shanghai Coming Hi-Technology Co., Ltd. | +86-21-64968998 | | +86-21-54827488 |
| Shanghai EachChem Co., Ltd. | 86 21 50255240 | 86 21 64196659 | 86 21 64196702 |
| Shanghai FChemicals Technology Co.,Ltd. | 86-21-36030322 | 86-13501722344 (mobile) | 86-21-61179676 |
| Shanghai Fuxin Pharmaceutical Co., Ltd. | +86-021-31300828 | +86-186 4512 1291 | |
| Shanghai Goldenmall biotechnology Co., Ltd. | 86-21-59109999 | | 86-21-59109999 |
| SHANGHAI IMMENSE CHEMICAL CO,.LTD | +86-21-65888969 | +86 17317597701 | +86-21-65888910 |
| Shanghai MC Pharmatech Co., Ltd | | | |
| Shanghai Mintchem Development Co.,Ltd | 0086 731 8551 8261 | 0086 731 8551 8147 | 0086 731 8551 8167 |
| Shanghai NuoCheng Pharmaceutical Co.,Ltd. | +86-21-64749208 | | +86-21-64379012 |
| Shanghai Oripharm Co.,Ltd | +86-21-64396936 | | +86-21-64814386 |
| Shanghai PI Chemicals Ltd | 86 21 58953700 | | 86 21 58953701 |
| Shanghai PI Chemicals Ltd. | 86 21 58953700 | 86 21 58953706 | |
| Shanghai PI Chemicals Ltd. | +86 21 58953700 | +86 21 58953706 | +86 21 58953701 |
| Shanghai Race Chemical Co., Ltd | +86 21 5493 3292 | | +86 21 5493 3292 |
| Shanghai Sinch Parmaceuticals Tech. Co. Ltd. | +86-21- 65100212-808 | +86-21-54097796-808 | +86-21-54096319 |
| Shanghai Sunway Pharmaceutical Technology Co., Ltd | 86-21-51613950 | | 86-21-51613950 |
| Shanghai Tauto Biotech Co., Ltd | +86-21-51320588 ext. 8025 | | +86-21-51320502 |
| Shanghai UCHEM Inc. | +86-21-56338808 | | +86-21-31615208 |
| Shanghai UDChem Technology Co.,Ltd | +86-21-37910092 ext 806 | | +86-21-37910092 ext 808 |
| Shanghai Witofly Chemical Co.,Ltd | +86-173 1736 9856 | +86-158 2118 9163 | +86-21-50563898 |
| Shanghai Worldyang Chemical Co.Ltd. | +86-21-56795766 | +86-13651600618 | +86-21-56795266 |
| Shanghai Yingxuan Chempharm Co., Ltd. | | | |
| Shangyu Catsyn Co., Ltd. | +86(0)575-82040869 | +86(0)155-58109350 | +86(0)575-82040869 |
| SHANXI WUCHAN FINE CHEMICAL CO., LTD | 86-351-7586011 | | 86-351-7586587 |
| SHENYANG OLLYCHEM CO LTD | +86 24 6225 9849 | +86 24 6225 9848 | +86 24 6225 9831 |
| SHENZHEN CHEMICAL CO. LTD. | +86-021-59789758 | | |
| SHOUGUANG FUKANG PHARMACEUTICAL CO., LTD | 86-536-5102364 | 86-536-5103738 | 86-536-5107886, 5101568 |
| Shouyuan Chemical | +86-575-8258-2530 | | +86-575-8251-8860 |
| Sichuan Highlight Fine Chemicals Co., Ltd. | +86 28 8525 1605 | | +86 28 8525 5300 |
| SICHUAN TONGSHENG AMINO ACID CO., LTD | 86-838-2274206 | | 86-838-2274207 |
| SightChem Co. Ltd. | 86 (0) 13910696714 | | 86-010-89412483 |
| Simagchem Corporation | +86 592 2680277 | | +86 592 2680237 |
| SINO GREAT ENTERPRISE LTD. | +86-731-84427351 | | +86-731-84429615 |
| SINO High Goal chemical Techonology Co.Ltd | +86-21-60642329 | +86-15618446497 | +86-21-34789887 |
| Sinoway | +86-592-5853819 | +86-592-5881073 | +86-592-5854960 |
| Skyrun Industrial Co.Limited | +86-571-88077016 | | +86-571-88077016 |
| Spec-Chem Industry Inc. | +86-25-84523390 | +86-25-84523391 | +86-25-84520790 |
| Stone Lake Pharma Tech Co., Ltd | 86-512-63926205 | | 86-512-63926200 |
| Suzhou ChonTech PharmaChem Technology Co., Ltd. | 86 512 66561588 | 86 512 66561800 | 86 512 6656 1598 |
| Suzhou Credit International Trading Co., Ltd. | +86-512-65398039 | +86-13913128022 (mobile) | +86-512-66720118 |
| Suzhou KPChemical Co., Ltd | 86 0512 6286030 | 86 18915544907 | 86 0512 62860309 |
| Suzhou MyLand Pharm&Nutrition Inc. | +86-512-66706057 | +86-13771770578 | |
| Suzhou Rovathin Foreign Trade Co.,Ltd | 86-512-65816829 | 86-512-61978430 | 86-512-65816839 |
| SUZHOU SINOERA CHEM CO., LTD. | +86 512 68246939 | | +86 512 68258994 |
| Taizhou Creating Chemical Co.,Ltd | +86-576-88827176 | +86-576-88820069 | +86-576-88822496 |
| Tengzhou Zhongzheng Chemical Co., Ltd | +86-632-5956199 | +86-13356326769 | +86-632-5561919 |
| Tetrahedron Scientific Inc | +86 (0)571-8848 9473 | +86 (0)180 7287 8644 (mobile) | +86 (0)571-8848 9473 |
| Tianjin Boai NKY International Ltd. | +86 22 5831 6066 | | +86 22 58316068 |
| Tianjin Boron PharmaTech Co., Ltd. | 86-22-59845187 | 607-351-9994 (USA) | 86-22-66211192 |
| TianJin HuiQuan Chemical Industry Co.,Ltd | +86 22 24922899 | | +86 22 24921213 |
| Tianjin McEIT Co.,Ltd. | +86 22 23040085 | +86 22 23040086 | +86 22 23040087 |
| Tianjin Norland Biotech Co.,Ltd. | +86-22-58196098 | | +86-22-58196099 |
| Tianjin Tiandingren Technology Co.,Ltd. | +86-22-23776588 | | +86-22-23776588 |
| TOP FINE CHEM | 86-574-27666816 | | |
| Trust&We Co., Ltd. | +86-21-61551611 | +86-156-017-09617 | +86-21-50676805 |
| Unispec Chemicals Co. | +86 25-52347273 | +86 25-51570518 | +86 25-52337971 |
| Valiant Co., Ltd. | +86-535-6374484 | | +86-535-6386989 |
| Varnor Chemical Co.,Limited | +86-796-8330061 | +86-18779971813 | |
| Vesino Industrial Co., Ltd. | +86-22-27466330 | | +86-22-27455635 |
| Volant-Chem Corp. | 86-22-23261245 | | 86-22-23289741 |
| Win-Win chemical Co. Ltd | 86-577-64498589 | 86-15325081899 (mobile) | 86-577-56994596 |
| WJF Chemicals Co. | +865708660431 | | +865703891534 |
| Wuhan Bright Chemical Co., Ltd. | 86-27-85803473 | 86-27-85556253 | 86-27-85804899 |
| Wuhan Soleado Technology Co.,Ltd. | 86-27-83341481 | 86-18971291927 (mobile) | |
| Wuhan Yuancheng Chemical Manufactory | +86-27-68886692 68886697 | | +86-27-68886696 |
| Wuhu Foman Biopharma Co., Ltd | +86-553-5885391 | +86-553-5885153 | +86-553-5885183 |
| Xi'an Caijing Opto-Electrical Science & Technology Co., Ltd. | +86-29-8829 4448 | | +86-29-8829 4448 |
| Yacoo Chemical Reagent Co.,Ltd | +86 512 67415997 | +86 512 65517080 | +86 512 65517086 |
| Yantai Taroke Bio-engineering Co.,Ltd | + 86 10 51727641 (Beijing Marketing Office) | | +86 10 51727640 |
| Zehao Industry Co., Ltd. | +86-531-81901329 | | +86-531-81901329 |
| Zeroschem.Co.,Ltd. | 86-10-61256048 | | 86-10-61256049 |
| ZHANGJIAGANG HUACHANG PHARMACEUTICAL CO., LTD. | +86-512-5818 5820 | | +86-512-5818 2700 |
| Zheda Panaco Chemical Engineering Co., Ltd. (ZhedaChem) | 86-571-88028625 | | 86-571-88028627 |
| Zhejiang J&C Biological Technology Co., Limited | +8615857007529 | +8615857007529 (We chat) | |
| Zhongtian Kosen Corporation Limited | 86-21-5726 5405 | 86-21-5726 5403 | 86-21-5726 5402 |
| Zibo Honors chemical co.,ltd. | +86-533-7167159 | | +86-533-7167159 |
| ZIBO SUNRISE PLASTIC-RUBBER ADDITIVE CO.LTD | +86 533 7180548 | | |
