PT Emdeki Utama Tbk (the Company) is a company founded in 1981 by the founders of the PT Metropolitan Development group to produce Calcium Carbide (CaC2) with the aim of import substitution which at that time came from the countries of South Africa, China, Poland and Taiwan with an average of 25,000 tonnes with a value of U$ 8.75 million dollars per year from 1984 to 1986.

With a factory located on 14 hectares of land in Driyorejo Gresik, PT Emdeki Utama Tbk started its trial production on 10 November 1987, followed by commercial production starting on 1 February 1988. In the following two years it has gained full public trust, so that most of Indonesia's carbide needs have been met by production from PT Emdeki Utama Tbk. In fact, some of its production has been exported to Japan, India, the United States and others.