<p class="MsoNormal">Adani Ports and Special Economic Zone (APSEZ), controlled by Indian billionaire Gautam Adani<a href="https://www.forbesmiddleeast.com/billionaires/world-billionaires/billionaire-gautam-adanis-fortune-slips-again-after-hindenburg-report-targets-indian-regulator-1" target="_blank">, </a>said on Friday it would acquire an 80% stake in Astro, a leading offshore support vessel (OSV) operator, for $185 million in an all-cash deal. </p>