Cambodian President Hun Sen vowed Saturday to improve investment conditions in his country on the heels of a recent surge in Japanese business there, the Foreign Ministry said of his talks with Prime Minister Yoshihiko Noda.

In the talks, Japan agreed to offer Cambodia up to ¥1.51 billion in projects to rebuild its roads and drainage system after flooding in September wrought major damage, the ministry said.

In praising the recent jump in investment, Noda expressed hope that Cambodia will also create an environment attractive to Japanese companies, it said.