STORY: U.S. President Joe Biden ended his visit to South Korea on Sunday, his first trip to Asia as president, raising both business interests back home as well as security matters in the region. Biden spoke at a news conference after a meeting with Hyundai's Chair Executive over the car manufacturer's plans to invest in the U.S. through to 2025."...in diverse technologies such as robotics, urban air mobility, autonomous driving, and AI..." As well as a new plant in Georgia that is expected to house electric vehicle and battery facilities. “It's great to be here to announce the more than $10 billion new investment in American manufacturing. This new commitment of $5 billion for advanced automotive technology, and $5.5 billion investment to open a new factory near Savannah, Georgia, is going to create more than 8,000 new American jobs."Biden also said he was 'not concerned' over intelligence reports that said Pyongyang was preparing for its first nuclear tests in nearly five years."We’ve thought through how we respond to whatever they do, and so I'm not concerned if that's what you are suggesting."OFF-SCREEN: "Do you have any message for Kim Jong Un while you're here?"“Hello... period. Thank you."A day earlier, Biden and his new South Korean counterpart President Yoon Suk-yeol discussed bigger joint military exercises and deploying more nuclear-capable American weapons, in response to the North's weapons tests. So far Pyongyang has not responded to U.S. overtures, though a senior U.S. official says that could be due to restrictions there related to the global health crisis.North Korea officially acknowledged its first outbreak earlier this month.