Group 1 - A breakthrough method developed by the Korea Institute of Basic Science allows the production of millimeter-sized, mirror-smooth graphite films, with grain sizes approximately 10,000 times larger than traditional artificial graphite [1] - The mechanical testing results show that the Young's modulus of the graphite film reaches 969 gigapascals, with a tensile strength of 1.29 gigapascals, approaching the theoretical limit of single-crystal graphite [1] - The planar thermal conductivity of the new graphite film is as high as 2034 watts per meter per Kelvin, exceeding that of copper, and the electrical conductivity reaches 22500 siemens per centimeter, setting a new performance record for macroscopic artificial graphite [1] Group 2 - In the A-share market, there are fewer than 10 stocks involved in the graphite business, with only three stocks having a rolling price-to-earnings ratio below 30 times as of August 13 [1] - Among the disclosed performance data of related concept stocks, both Dao's Technology and Zhongke Electric reported net profit growth, with Zhongke Electric expected to achieve a net profit of 232 million to 301 million yuan in the first half of 2025, representing a year-on-year growth of 235% to 335% [1] - Dao's Technology reported a net profit of 230 million yuan in the first half of the year, marking a year-on-year increase of 108.16% [1]