|Our company was established at a part of the Soka-Yashio Industrial Park
Saitama Prefecture Japan, June 18, 1970 for the purpose of producing chemicals (especially fine ones such as pharmaceutical intermediates).
Since we started our business as a small company with only about 20 employees in total, we have been continuously making every effort to enrich equipment and apparatus, to develop technology innovations, to hire excellent manpower, and to develop human resources.
Now the number of employees has increased to about 60, and with our new technology establishment, construction of facilities for production of APIs and other enhancement , we receive great patronage from customers as a multipurpose factory being able to meet various needs of customers.
Founding of Sun Chemical.
Started to produce an amino acid (methionine) at the 1st plant.
|Mar,1971||Completion of the 2nd plant construction, started to produce 1,8- diaminonaphthalene.|
|Agu,1972||Started to produce another an amino acid (valine).|
|Feb,1974||Establishment of new refrigerating equipment
(100 tons of refrigeration).
|Feb,1977||Completion of an activated sludge system.|
|Jun,1978||Started to produce another an amino acid (leucine).|
|May,1981||Started to produce another amino acid
|Apr,1985||Introduction of a computer control system into our distillation facility.|
|Jun,1987||Started to produce a Diltiazem (Herbesser) intermediate.|
Started to Produce a D-aspartic acid by an immobilized enzyme method.
Completion of the 3rd plant construction, and installation of a reactor that can use a heat medium oil.
Completion of the 6th plant construction, and introduction of high-melting-point material flaking equipment and distillation equipment.
|May,1992||Completion of the 5th plant construction, and introduction of a conical dryer.|
|Dec,1995||Started to produce an intermediate of an HIV Reverse Transcriptase Inhibitor Drug.|
|Jul,1997||Started to produce an intermediate of an HIV Protease Inhibitor Drug.|
|Jul,1997||Completion of the first interim construction of the 7th plant (a multipurpose plant).|
|Jun,1998||Started to produce an animal drug (sulfamoildapsone).|
|Jul,1999||Completion of the final construction of the 7th plant.|
|May,2001||Started to produce Feed-Grade Biotin.|
|Sep,2002||Completion of the 8th plant construction (API production facilities)|
|Nov,2002||Started to produce Pharma-Grade Biotin|
|Mar,2003||Introduction of the 6th plant (a pilot plant).|
|Jun,2006||Completion of the 9th plant construction, and introduction of liquid-phase air oxidation facilities and continuous concentration facilities.|