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"I congratulate all Ukrainians on the new milestone of our journey to the EU! Today, the Association Agreement between Ukraine and the EU comes into full force. This is an extremely important stage of bilateral relations," he wrote on Facebook.

Read also"Day of celebration for Europe:" EU greets Ukraine amid full entry of Association dealHe noted that the economic part of the Agreement on the Free Trade Area between Ukraine and the European Union had been in force for more than a year and a half.

"I am glad to note that the EU has become the main trading partner of our country during this period. I will give a few figures: currently, trade with the EU countries accounts for 41.1% of total foreign trade in goods, and in the first half of 2017, exports of goods and services to the EU increased by 22.8% year-over-year, to $9.4 billion," Groysman said.