Ukrainian Prime Minister Denys Shmyhal arrived in Tokyo on Monday to discuss Ukraine's reconstruction, pledging a new bilateral tax treaty and other support for Japanese businesses amid the ongoing war in Ukraine, Reuters reported on Monday.

"Japan has stood with and continues to stand with Ukraine," Japanese Prime Minister Fumio Kishida said in a speech opening the talks, during which he announced a new bilateral tax treaty and the start of negotiations for an investment treaty without giving details.

As Russia's invasion of Ukraine enters its third year, Japan has pledged more than $10 billion worth of financial aid, as it seeks to show solidarity with Kyiv's war effort. It cannot provide direct military support because the export of lethal weapons is forbidden.

Japan partially eased its arms export rules in December, the first such overhaul in almost a decade, but still has restrictions on shipping weapons to countries at war.

Shmyhal said the meeting heralds a new chapter in Japan-Ukraine relations, adding that Ukrainians will never forget Japan's support.

He added that he hopes to see major carmakers, including Toyota, opens new tab, create production facilities in Ukraine.

At the reconstruction meeting, Kishida said Japan would support venture capital companies in Ukraine, pledged an easing of visa controls, and said government agency JETRO would open a new office in Kyiv.

About 50 Japanese companies signed deals with Ukrainian counterparts at the conference, in areas including agriculture, energy, and infrastructure. The total value of the deals was not disclosed.