Mexican President Enrique Pena Nieto has expressed concern about Japan's attempt to win tariff exemptions for rice and other farm products when it joins trade talks on the Trans-Pacific Partnership agreement.

In written replies to questions submitted by Kyodo News ahead of his four-day visit to Japan from Sunday, Mexico's president said Japan should respect the principle of seeking to eliminate all tariffs on trade between TPP members.

Pena Nieto, who is scheduled to meet with Prime Minister Shinzo Abe on Monday, pointed out that members of the TPP negotiations have agreed to seek a high level of trade liberalization.