1979 Timuraya Tunggal was founded, with the first plant built on 45.000m2 land in Tangerang, Banten
1980 Commercial operation began and for the first time produced Sulfuric Acid, Aluminum Sulfate and Alkyl Benzene Sulfonic
1991 The company pioneered the production of Sulfamic Acid in Indonesia
1993 The company expanded its business by building another plant on a 140.000 M2 land in Karawang, West Java, in tandem with the company's development and increasing demand on our products and customers growing trust in our products and services
1995 The Karawang production unit, comprising Sulfuric Acid II, Aluminum Sulfate II and, Sulfamic Acid II, began commercial production
1999 Following success of surviving Asian economic crisis, Timuraya Tunggal started entering the agro chemical business, especially fertilizer business, with Ammonium Sulfate (ZA) as the first fertilizer product manufactured at the Karawang plant.
2001 The company was awarded international certification ISO 9001:2000 for its Quality Management System by Lloyd's Register Quality Assurance.
2002 Again, Timuraya pioneered the production of Potassium Sulfate in Indonesia, adding another to its fertilizer portfolio
2007 Timuraya started to supply chemical products for oil drilling, adding to its diversified business portfolio.
At the same year, Timuraya achieved SNI certification for all Manufacturing Products (5 Products)
2009 The company again boosted production capacity of Sulfamic Acid, now ranks among the worlds largest producer
2013 The company expanded its Potassium Sulfate production line to further cater its growing demand.
Within the same year, production of Sulfuric Acid Battery Grade would made available commercially.
Also achieve Halal Assurance System Certification.