Group 1 - The core point of the article is that Defu Technology (301511) plans to acquire 100% of a Luxembourg copper foil company, which is part of a strategic move to enhance its position in the high-end IT copper foil market [1] - This acquisition will increase Defu Technology's total electrolytic copper foil production capacity from 175,000 tons per year to 191,000 tons per year, making it the largest producer of electrolytic copper foil in the world [1] - After the completion of the acquisition, Defu Technology will send a team to Luxembourg to leverage its engineering and manufacturing expertise to reduce costs at the European facility [1]