Moscow, Russian Federation — Mobile TeleSystems PJSC (“MTS” – NYSE: MBT; MOEX: MTSS), the leading telecommunications provider in Russia and the CIS, announces that the credit rating agency Standard & Poor’s changed its outlook on MTS

On September 11, 2017, Standard & Poor’s placed MTS on Rating Watch Negative; 'BB+' rating affirmed. The changes in MTS outlook was the result of the downgrade in the credit ratings of Sistema PJSFC, the Company’s major shareholder.

Please refer to www.standardandpoors.com for additional information.

* * *

For further information, please contact in Moscow:

Joshua B. Tulgan
Director, Department of Corporate Finance and Investor Relations
Mobile TeleSystems PJSC
Tel: +7 495 223 2025
E-mail: ir@mts.ru