Japan will join with private companies and nongovernmental organizations to make more efficient and effective use of official development assistance, one of Tokyo's key diplomatic pillars, according to a white paper released by the Foreign Ministry on Friday.

The annual report on development cooperation reflects Tokyo's review of the ODA it provides to promote economic and social advancements in developing nations.

"It will become even more necessary to strengthen coordination among various aid providers," the ministry said in the white paper. "The ministry will deepen discussion with various parties involved and carry out ODA provision in a more efficient and effective way."