US-Israeli investment company Ampal-American Israel Corp. announced Monday that it agreed to sell its 50% holding in Coral World International for $21m., booking a gain of just under $5m. from the deal. Coral, which builds underwater observatories around the world - including in Eilat - will now be entirely controlled by one shareholder, who had previously owned the company jointly with Ampal. Ampal primarily invests in Israel-based or Israel-related businesses, in a diverse range of sectors, including the energy, real estate and leisure industries.