Mapna Group Employees Investment Company (public shares) was registered on 22 September 2014 under number 254720 in the Tehran Companies and Non-Commercial Institutions Registration Office and through letter number 121/169298 dated March 1st 2014 from the Securities and Exchange Organization This company is registered as a financial institution under the number 11011 with the mentioned organization. Currently, the company is one of the subsidiaries of Mapna Group (public shares).

Mashanir Technical and Engineering Investment Company was registered as a public company in 2003 in Tehran Companies and Industrial Property Registration Department under number 236782. The capital of the company at the beginning of its establishment was 10 billion Rials, including 10 million shares with a nominal value of 1 thousand Rials per share, and during one stage, the capital was increased as follows to the amount of 20 billion Rials, including 20 million shares with a nominal value of 1 thousand Rials per share at the end. The financial year ending on 12/29/2014 has increased.

Pars Switch Company established in 1976 and is one of the pioneer companies in the production of medium and high voltage circuit breakers and disconnectors in the Middle East, Pars switch company offers medium voltage circuit breakers and disconnectors, from 7.2 up to 36 kilovolts and high voltage circuit breakers and disconnectors, from 72 up to 420 kilovolts.

Islamabad Power Generation Company was established in Iran in 1386 for the purpose of building Dalahu Combined Cycle Power Plant and operating and maintaining it. This company is the owner of this power plant.