Seiwa Chuo’s reported block reaches 26.6%, with part of SK Kosan’s stake pledged
SK Kosan's direct holding is 14.60%, but a corrected joint-holding report lifts the combined position with Masaaki Sakagami to 26.60%. The filings also show ¥110 million of borrowings and 360,000 shares pledged to MUFG Bank, a reminder that influence here sits inside a financing structure as well as a share register.