1894
Elekeiroz S.A. had its origin in the pharmaceutical laboratory Moura Queiroz and Co., founded by the pharmacist Luiz M. Pinto de Queiroz.
1909
The firm Moura Queiroz and Co. became a limited partnership by shares named L. Queiroz & Cia, the name that would later become the current name and in 1910, the first factory of Sulfuric Acid in Latin America was built.
1912
The Company, already transformed into Sociedade Anônima Produtos Químicos L. Queiroz, a limited liability corporation, produced and marketed acids, fertilizers, insecticides, pesticides and pharmaceuticals.
1923
Acquisition of the land in Várzea Paulista, where today stands one of its industrial sites.
1954
The first Phthalic Anhydride plant was initiated in Brazil and one year later, Ucebel Chemicals, an Elekeiroz subsidiary, started its activities producing Maleic Anhydride and Polyester Resins.
1960
The first Octanol factory in South America, through Elekeiroz do Nordeste, was implanted in Igarassu, Pernambuco.
1969
The Company opened its capital for public subscription.
1972
Production of Phthalic Plasticizers starts at Elekeiroz do Nordeste.
1982
Itaúsa - Investimentos Itaú S.A. acquired the ownership of Dr. Henrique de Toledo Lara and now holds an important share of the capital, assuming the share control of the Company in 1986.
1987
The Company initiated its Sulfuric Acid plant in Várzea Paulista, with a capacity of 700 ton / day and, in 1988, installed a turbine to generate electricity from steam extracted from that unit.
1995
Elekeiroz do Nordeste Indústria Química incorporated Produtos Químicos Elekeiroz S.A. and the following year the Company’s name was changed to Elekeiroz S.A.
1998
The fertilizer production unit, located in Guará - SP was sold and the Company began to devote itself exclusively to the production and marketing of intermediate chemical products.
2000
The Company obtained its first ISO 9001 certification for its quality management system in the development and production of polyester resins, which in following years, was extended to all industrial units.
2002
Elekeiroz S.A. acquired the controlling stake in Ciquine Petrochemical Company based in Camaçari - BA, indirectly becoming its controller, expanding its production capacity of Phthalic Anhydride and Plasticizers and returning to work in the manufacture of Alcohols.
2004
The wastewater outfall from Várzea Paulista site until CSJ treatment plant. (Companhia de Saneamento de Jundiaí)(Sanitation Company of Jundiai), starts to operate.
2005
The Company started the production of 2-Ethyl Hexanoic Acid in its Camaçari complex thus, adding one more product to its portfolio.
2009
The 3rd line of Plasticizers at Várzea Paulista site starts to operate.