C.N.T.E.E. Transelectrica

Environmental & Social Information • May 3, 2018

To the: Bucharest Stock Exchange – Department of Operations Issuers Regulated Markets

Financial Supervision Authority - General Directorate Supervision - Issuers Division

Current report as per the provisions of Law 24/2017, Regulation 1/2006 of CNVM and the BSE Code Date of the report: 03 May 2018 Name of Issuing Company: CNTEE TRANSELECTRICA SA, Company Managed in Two-tier System Headquarters: Bucharest 1, Blvd Gheorghe Magheru 33 Working location: Bucharest 3, Str. Olteni 2-4 Phone / fax numbers: 4021 30 35 611 / 4021 30 35 610 Single registration code: 13328043 LEI code: 254900OLXCOUQC90M036 Number in the Trade Register: J40/8060/2000 Share capital subscribed and paid: 733,031,420 Lei Regulated market where the issued securities are transacted: Bucharest Stock Exchange

Communiqué: Availability of the 2017 Sustainability Report of Transelectrica

The National Power Grid Company Transelectrica SA informs the investor public it has published for the first time a Sustainability Report, elaborated according to the recommendations of Global Reporting Initiative (GRI) standard. This is a document regarding 2017 with respect to Company development, providing a clear direction towards investments, sustainability and predictability.

"Transelectrica is a national and regional strategic company, therefore durability, sustainability and innovation are the values which we build our road upon and we assume in order to provide safe operation of the power system, both in Romania and in the region".

The report is available online on the website www.transelectrica.ro, section Investor Relations and Financial Reports / Periodical reporting / Reports.

Contact details: relatii.investitori@transelectrica.ro

Georgeta - Corina POPESCU Executive Director General Directorate Chairperson

Dan - Valeriu ARDELEAN Directorate Member