Doosan Enerbility (034020) closed higher in the regular session on the 21st, extending its flat-to-slightly-upward trend. Discussions on nuclear cooperation between South Korea and the United States are drawing attention as the key factor that will determine the stock's future direction. According to the Korea Exchange, Doosan Enerbility finished the day at 85,300 won, up 0.47% from the previous trading day. The gain was modest, but the stock held onto positive territory after repeated fluctuations during the session. The overall market sentiment also improved. The KOSPI closed at 7,007.72, up 1.65% from the previous trading day. As the index recovered the 7,000 level during the session, investor sentiment appeared to improve. Whether the KOSPI can settle stably above the 7,000 mark is seen as a major focal point for the market going forward. Meanwhile, attention surrounding Doosan Enerbility is also focused on discussions of investment cooperation with the United States between the two countries. In particular, analysts say that if cooperation plans in the nuclear power sector become concrete, it could affect expectations for orders for the domestic nuclear industry and related companies. However, the details of investment in the U.S. and nuclear cooperation have not yet been finalized. The official announcements from both countries and subsequent follow-up negotiations must be watched. [This article is for reference only in making investment decisions and is not intended to solicit investment. Investors are responsible for their own investment decisions.]