"The Russian Federation is satisfied [by the fact] that the adopted decision takes into account our key argument that there is an attempt to prove Ukraine's nonexistent sovereignty over Crimea behind this lawsuit," the ministry said in a statement.
The ministry added that the court's decisions regarding Russia's other objections will be analyzed and taken into consideration while preparing a memorandum due on 20 August 2021.
"The Russian Federation counts that during the next stage of the inquiry into the case, the court of arbitration will take the Russian position into full consideration and leave all Ukrainian demands unsatisfied as a result," the ministry concluded.
In September 2016, Kiev filed a lawsuit against Moscow regarding the coastal state rights in the Black Sea, Sea of Azov and Kerch Strait. On Friday, the court confirmed its jurisdiction over the case, while also stating it will not look into Ukraine's claims regarding its rights in the Crimean coastal waters.