Full List of API Manufacturers in South Korea (2025)

High Tech Pharm

12, Cheomdansaneop 6-ro,
Daesowon-myeon, Chungju-si,
Chungcheongbuk-do, 27466, Korea
E-mail: master@htpharm.com
Tel: +82.(0).43.880.0011-3
Fax: +82.(0).43.880.0014

280, Sinnae-ro, Daeso-myeon, Eumseong-gun,
Chungcheongbuk-do, 27663, Korea
E-mail: master@htpharm.com
Tel: +82.(0).43.883.0012-3
Fax +82.(0).43.883.0014

Web: http://www.htpharm.com/

HLB PEP Co., Ltd.

Rm.206, Pilot plant, Gwangju Technopark,
333, Cheomdangwagi-ro, Buk-gu, Gwangju,
Republic of Korea, 61008

Tel: +82-62-714-1166
Fax: +82-62-714-1188
http://hlbpep.co.kr/

Hwail Pharmaceutical Co., Ltd

Pangyo Headquarters:
13488, 5th floor of Korea Bio Park C-dong
700 Daewang Pangyo-ro, Bundang-gu,
Seongnam-si, Gyeonggi-do (Sampyeong-dong 694-1)
Tel: 02-512-2592
Fax: 02-561-4897

Sangsin-ri Factory:
18622 Pharmaceutical Industrial Complex 3-gil,
Hyangnam-eup, Hwaseong-si,
Gyeonggi-do (904-7, Sangsin-ri)
Tel: 031-628-3744
Fax: 031-353-7860

Hagil-ri Factory:
18608 Balan Industrial Complex-ro 1-gil,
Hyangnam-eup, Hwaseong-si,
Gyeonggi-do (Hagil-ri 1406-13)
Tel: 031-628-3731
Fax: 031-353-9219

Banwol Factory
156 Sandan-ro 67 beon-gil, Danwon-gu,
Ansan-si, Gyeonggi-do (Moknae-dong 454-3)
Tel: 031-491-4042
Fax: 031-491-4045

Web: http://www.hwail.com/

Ildong Pharmaceutical

2, Baumoe-ro 27-gil, Seocho-gu,
Seoul, Republic of Korea

Tel: +82(2)526-3114
Customer Center: +82(80)022-1010
https://www.ildong.com

INIST ST

19F, Higgs U-Tower, Knowledge Industry Center,
184, Jungbu-daero, Giheung-gu, Yongin-si,
Gyeonggi-do, Republic of Korea
Tel: +82-31-669-9500
Fax: +82-31-630-5460

Research Institute:
ADD 19F, Higgs U-Tower, Knowledge Industry Center,
184, Jungbu-daero, Giheung-gu, Yongin-si,
Gyeonggi-do, Republic of Korea
Tel: +82-31-669-9540
Fax: +82-31-630-5461

Factory in Eumsung:
500, Sinnae-ro, Geumwang-eup, Eumseong-gun,
Chungcheongbuk-do, Republic of Korea
Tel: +82-43-880-0600
Fax: +82-43-880-0610

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Factory in Osong:
54, Osongsaengmyeong 6-ro, Osong-eup,
Heungdeok-gu, Cheongju-si,
Chungcheongbuk-do, Republic of Korea
Tel: +82-43-880-0700
Fax: +82-43-237-7283

Web: https://inistst.co.kr

JEIL (JEIL PHARMACEUTICAL CO., LTD)

HQ:
343, Sapyeong-daero, Seocho-gu,
Seoul, (06543), Korea
Tel: +82-2-549-7451
Fax: +82-2-549-4045

Factory:
7, Cheongganggachang-ro, Baegam-myeon,
Cheoin-gu, Yongin-si, Gyeonggi-do,
(17172), Korea
Tel: +82-31-332-4457~8, +82-31-334-0222~4
Fax: +82-31-333-0337
https://www.jeilpharm.co.kr/

J2H Biotech Inc.

B-210 142-10, Saneop-ro 156beon-gil,
Gwonseon-gu, Suwon-si, Gyeonggi-do,
Republic of Korea

Tel: +82 31 – 5182 – 8070
Fax: 031) 5182 – 8080
E-mail: info@j2hbio.com
https://j2hbio.com

Kolon Life Science Inc.

HQ/R&D Center:
One & Only Tower, 110, Magokdong-ro,
Gangseo-gu, Seoul
Tel: +82-2-3677-4150

Chungju Plant:
54, Gieopdosi 1-ro, Daesowon-myeon,
Chungju-si, Chungcheongbuk-do
Tel: +82-43-841-7400
Fax: +82-43-841-7496

Gimcheon Plant:
238, gongdan-ro, Gimcheon-si,
Gyeongsangbuk-do

Gimcheon Plant 2:
77, Saneopdanji 2-ro, Eomo-myeon,
Gimcheon-si, Gyeongsangbuk-do

Tel: +82-54-429-1000
Fax: +82-54-429-1111

Web: https://www.kolonls.co.kr

KyongBo Pharmaceutical Co., Ltd

174, Sirok-ro, Asan-si,
Chungcheongnam-do

Tel: +82-41-420-0500
https://www.kbpharma.co.kr

Kukjeon Pharmaceutical Co., Ltd

Head office: #1516, Geumgang Penterium IT Tower,
282, Hagui-Ro, Dongan-Gu, Anyang-Si,
Gyeonggi-Do, Korea
Tel: 02.3486.2246
Fax: 031.337.5147

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Hyangnam Factory:
8, Balangongdanro, Hyangnam-Eup, Hwaseong-Si,
Gyeonggi-Do, Korea
Tel: 031.352.8139
Fax: 031.8059.8317

Eumseong Materials Factory:
27 Seongbonsandan 2-ro, Geumwang-eup,
Eumseong-gun, Chungcheongbuk-do,
South Korea
Tel: 070.5003.6500
Fax: 070.8282.8265

Web: https://www.kukjeon.co.kr

LG Chem

LG Twin Towers,
128, Yeoui-daero, Yeongdeungpo-gu,
Seoul
Tel: 02-3773-1114

Osong Plant:
151, Osongsaengmyeong 1-ro, Osong-eup,
Heungdeok-gu, Cheongju-si,
Chungcheongbuk-do
Tel: 043-710-6010

Web: https://www.lgchem.com

REYON Pharmaceutical Co., Ltd.

Head office:
12F, Building A, Mirae Asset Tower,
620 Teheran-ro, Gangnam-gu, Seoul, Korea

Jincheon Factory:
69-10 Hansam-ro, Deoksan-eup,
Jincheon, Chungcheongbuk-do, Korea

Chungju Factory:
530, 531 Yeongpyeong-ri, Daesowon-myeon,
Chungju-si, Chungcheongbuk-do, Korea

Web: https://www.reyonpharm.co.kr/

Sam-Oh Pharm Co. Ltd

7th Floor. Samoh B/D, 151,
Yeoksam-ro, Gangnam-gu,
Seoul, 06244, Korea.

Tel: +82-2-514-5691
Fax: +82-2-514-5690
E-mail: email35@samohpharm.co.kr
http://www.samohpharm.co.kr

Samyang Biopharmaceuticals Corp.

HQ: 295, Pangyo-ro, Bundang-gu, Seongnam-si,
Gyeonggi-do, Korea; Postcode13488
Tel: +82-2-2157-9111
Fax: +82-2-2157-9062

MD Plant:
55, Munpyeongseo-ro 18beon-gil,
Daedeok-gu, Daejeon, Korea; Postcode 34302
Tel: +82-42-930-3114
Fax: +82-42-931-6439

Pharmaceuticals Plant:
79, Sinildong-ro, Daedeok-gu,
Daejeon, Korea; Postcode 34324
Tel: +82-42-930-9303
Fax: +82-42-934-1403

Web: https://samyangbiopharm.com