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Company History

Pharmaceutical business of
POLA Chemical Industries, Inc.
Pharmaceutical business of
KAYAKU Co., Ltd.
Establishment of POLA Chemical Industries, Inc. 1940
1950 Discovery of Colimycin, antibiotics in Fukushima Prefecture
Opening of Shizuoka Factory in Shizuoka, Shizuoka Prefecture 1954 Establishment of Lion-Kinyaku Laboratories
1956 Change of company name to“KAYAKU Antibiotics Research Co., Ltd.”
Implementation of domestic production ofBacitracin, antibiotics
1964 Opening of Saitama factory in Fujimino, Saitama Prefecture
Capital participation in KAYAKU Co., Ltd. Entry into pharmaceutical business 1983 Entry into POLA Group
1984 Change of company name to KAYAKU Co., Ltd.
Establishment of POLA New Drug Research Center 1986 Integration of Research Division into POLA R&D division
1998 Opening of Tokorozawa factory Factory in Tokorozawa, Saitama Prefecture
Approval of first original new drug, “Lulicon Cream /Solution” 2005 Launch of Lulicon Cream/Solution, antifungal topical drug
Transition to a holding company structure


Establishment of SUN PHARMA Inc. by spinning off pharmaceutical division from POLA Chemical Industries, Inc. (Jan.5). Operations start-up after receipt of authorization

Approval of "DivigelR" for the treatment of menopausal distorders
2007 By assignment of production and distribution permit and merger of marketing division into SUN PHARMA,
KAYAKU became the manufacturing specialized company
"LuliconR Ointment", 3rd formulation of "LuliconR" (antifungal topical products), obtained the regulatory approval

"Medical Mycology Workshop" started for young dermatologists
"SUN PHARMA RISING STAR AWARD" was founded to support the young, spirited dermatology researchers 2014
Started exclusive distribution of GlaxoSmithKline's "DUACR Combination Gel" for the treatment of acne vulgaris in Japan 2015
Entry into Sun Pharma Group after transition of stock shares from POLA ORBIS HOLDINGS INC. to Sun Pharmaceutical Industries Ltd 2019

Sun Pharma Japan Ltd. KAYAKU Co., Ltd.
Establishment of Sun Pharma Japan Ltd. 2012
Start integration work with POLA PHARMA Inc. 2019
Merged with POLA PHARMA inc. January 2020 Became the manufacturing specialized subsidiary of Sun Pharma Group
Launched ILUMYA®(tildrakizumab)for Treatment of Plaque Psoriasis as Sun Pharma's first innovative drug in the Japanese market September 2020