声明显示，阿曼投资局与阿尔及利亚财政部签署建立2.988亿美元投资基金的初步协议。

Core Insights - The Oman Investment Authority and the Algerian Ministry of Finance have signed a preliminary agreement to establish an investment fund worth $298.8 million [1] Group 1 - The investment fund aims to enhance economic cooperation between Oman and Algeria [1] - This agreement marks a significant step in fostering bilateral investment opportunities [1] - The fund is expected to focus on various sectors to drive growth and development in both countries [1]