Ukrspecexport said that under the mutual agreement of the sides the terms of completing the contract were moved to autumn 2017.
"The decision was made due to military actions in eastern Ukraine," the press service said.
Ukrspecexport said that Oplot tanks are competitive vehicles. Potential buyers from various countries showed their interest to buy them.
"Unfair rivals are hindering the arrival of the vehicles to the international market," the company said.
Recently Thailand's Bangkok Post reported with the reference to Commander-In-Chief of Thailand Armed Forces General Chalermchai Sittisat that Bangkok and Beijing are discussing expansion of defense cooperation.
Some foreign media spread information that Thailand allegedly refused to buy Ukrainian Oplot tanks in favor of Chinese VT-4 tanks.