The European Union is not ready to make a formal decision to extend sanctions against citizens and legal entities of Russia and Ukraine due to procedural issues, there is no new date yet.
Since 2014, Moscow’s relations with Western states have deteriorated due to the crisis in Ukraine and Crimea’s reunification with Russia following a referendum. The EU member states and the US imposed several rounds of anti-Russia sanctions, while Moscow has repeatedly refuted the allegations of interference in Ukraine’s affairs, warning that the Western sanctions are counterproductive and undermine global stability.
The sanctions and restrictive measures against Russia were adopted in response to the illegal annexation of Crimea and the deliberate destabilisation of Ukraine http://www.consilium.europa.eu/en/policies/sanctions/ukraine-crisis/. As of now, the economic sanctions are valid until 31 July 2018. The targeted individual restrictive measures, namely a visa ban and an asset freeze, currently against 150 people and 38 entities, last until 15 March 2018. The restrictive measures in response to the illegal annexation of Crimea and Sevastopol, limited to the territory of Crimea and Sevastopol, are currently in place until 23 June 2018 http://www.consilium.europa.eu/en/press/press-releases/2017/12/21/russia-eu-prolongs-economic-sanctions-by-six-months/.