PT Petrosea Tbk (yhe Company) was established under Notarial Deed No.75, dated February 21, 1972, of Djojo Muljadi, LLM, Public Notary in Jakarta, within the framework of the Foreign Capital Investment Law of 1967. PT Petrosea operates in engineering construction and contract mining services. The major shares were taken over by Clough Engineering Group of Australia in 1984.