V-tech (7717) has continued to rise significantly. They announced the receipt of the world's first photo mask defect correction device 'DRACO' using local vacuum technology and converging ion beams from a domestic major photo mask maker the day before. The high precision of the correction position, the fine processing performance such as etching function and deposition function, and the shortening of the mask input and output time by local vacuum have been highly evaluated. Although the order size is not clear, there is a move to anticipate a positive impact on medium-term performance, including achievements.