A Russian presidential aide says President Vladimir Putin will hold talks with Japanese Prime Minister Shinzo Abe next Thursday in Vladivostok.
Yuri Ushakov told Russian media on Friday that the two leaders will meet on the sidelines of the Eastern Economic Forum.
He said they will discuss bilateral cooperation and problems related to the "very sensitive issue" of peace treaty negotiations.
Ushakov said, "Moscow's position on the matter is clear for everyone." Analysts say the remark suggests Putin will make no concessions about four islands controlled by Russia and claimed by Japan.
The Japanese government maintains the islands are an inherent part of Japan's territory. It says the islands were illegally occupied after World War Two.
The two leaders have agreed to accelerate bilateral negotiations toward a peace treaty based on a 1956 joint declaration. It states that Russia will hand over two of the four islands after a peace treaty is concluded.
But Moscow insists Japan should first recognize that the islands became part of Russian territory as a result of World War Two.