O2 Czech Republic : Board of Directors approved amendments to the share buy-back rules (15 November 2016)

Inside information

In connection with the expected increased liquidity in the market following the announcement of the MSCI Czech Republic Index composition on November 14, 2016 , which will become effective as of December 1, 2016, the Board of Directors approved amendments to the rules of the purchase of own shares (share buy-back) as approved by the General Meeting on December 8, 2015. During the period of increased market liquidity until November 30, 2016 the company may carry out trades on the regulated market in larger volume than the volume limit set for the current share buy-back program as approved by the Board of Directors on December 23, 2015 (i.e. max. 130,525 shares per day ). The company will continually respond to the current market conditions, however actual transaction volumes are not guaranteed in any way. The company also reserves the right to fully suspend trading.

Investor Relations

O2 Czech Republic a.s. investor_relations@o2.cz t +420 271462076

O2 is the largest integrated telecommunications provider in the Czech market. At present we operate close to eight million mobile and fixed accesses, which ranks us among the market leaders in fully converged services in Europe. To users of mobile services in the Czech Republic we offer state-of-the-art HSPA+ and LTE technology. We have the most comprehensive proposition of voice and data services in the Czech Republic, and we actively exploit the growth potential of the various business lines, especially ICT. Our data centres, with total floor area of 7,300 square metres, rank us among the leaders in hosting, cloud and managed services. O2 data centres belong to the few commercial ones in Central Europe to have TIER III certification. With our O2 TV we are also the largest IPTV service provider in the Czech Republic.

Praha 4

140 22

T 800 02 02 02 www.o2.cz/spolecnost/en/investor-relations/

investor_relations.cz@o2.cz