Group 1 - Northrop Grumman Corporation (NYSE:NOC) is identified as an undervalued aerospace stock with potential for investment [1] - The company signed a Memorandum of Understanding (MoU) with Taiwan's National Chung-Shan Institute of Science and Technology (NCSIST) to explore cooperation on modernizing air and missile defense systems for Taiwan's Ministry of National Defense [2] - NCSIST is a leading research center focused on national defense technology, aiming to enhance Taiwan's self-reliant defense capabilities in response to evolving aerospace and missile threats [2][3] Group 2 - Northrop Grumman Corporation specializes in designing and building military aircraft, missile defense systems, and space technologies, positioning itself as a key player in the global aerospace and defense industry [3]