PT Elnusa Tbk (Company) was established under the name of PT Elektronika Nusantara on January 25, 1969 based on notarial deed No.18 of Tan Thong Kie, S.H., dated January 25, 1969, as amended by notarial deed No. 10 of the same notary dated February 13, 1969. The Company’s articles of association has been amended several times, most recently by notarial deed No. 2 of Soegeng Santosa, S.H., dated Jan 7, 2002, concerning among others, the change in the Company’s name and public offering.

The Company and subsidiaries are engaged in upstream oil and gas services and investing in shares of stock in subsidiaries and joint venture company that are engaged in several industries, such as upstream oil and gas support services and trading, downstream oil and gas services and trading, oil and gas data management and storage services, oil and gas field asset management and telecommunication services. The Company also provides goods and services including providing and managing office space for its subsidiaries, related parties and third parties.