Near the midday break, the ultra high pressure sector fluctuated and strengthened, with Dalian Insulator Group up limit, Yangzhong Electric Technology up more than 10%, Pinggao Electric up 7% and continued to reach a new high this year. Changgao Electric Group, China XD Electric, Jiangsu Ankura Smart Transmission Engineering Technology and others are among the top gainers. According to research reports from Galaxy Securities, during the 14th Five-Year Plan and the 15th Five-Year Plan, China is expected to add 27-32 ultra-high voltage DC transmission channels for external use. At present, there are 4 existing lines and 5 under construction, which means that there is still room for the construction of 18-23 lines in the future. The market generally expects that with the advancement of the new line planning, the final construction scale is expected to exceed expectations, bringing greater market space for the industry.