SK Kosan Co., Ltd.’s latest disclosure on Seiwa Chuo Holdings looks dull at first glance: the June 3 change report was triggered by an address change and lists a single filer. The more interesting part is the ownership map behind it. That report says SK Kosan directly holds 575,800 shares, equal to 14.60% of Seiwa Chuo’s 3,945,100 outstanding shares, while a corrected joint-holding report filed the same day puts the combined position with Masaaki Sakagami at 1,049,380 shares, or 26.60%, as of May 1.
The direct line is 14.6%, the reported block is larger
Why does that matter? Because readers who stop at the standalone filing see only the corporate holder. The corrected report says the increase in the reported holding ratio was caused by an increase in joint holders, and it adds Sakagami, identified in the filing as the issuer’s representative director, with 473,580 shares, or 12.00%.
That 12.00% stake was reported as 11.01% in the previous report. The filing attributes the latest increase to a 40,600-share off-market acquisition by inheritance on March 6. Put beside SK Kosan’s unchanged 575,800-share holding, the reported position around Seiwa Chuo is materially larger than the 14.60% direct line item in the June 3 report. It is still not a majority stake, but it is a much fatter block than the plain-vanilla address-change filing suggests.
The financing is explicit, and partly secured on the shares themselves
The filings are also unusually clear on how SK Kosan financed its direct holding. The acquisition funding total is listed at ¥126.15 million, made up of ¥16.15 million in own funds and ¥110 million in borrowings.
The borrowing breakdown names two sources: ¥30 million from MUFG Bank’s Kujo branch and ¥80 million from Masaaki Sakagami. Separately, SK Kosan discloses a securities collateral agreement with MUFG Bank covering 360,000 shares.
For business readers, that means two things. First, influence around Seiwa Chuo looks bigger when the joint-holding report is read alongside the standalone one. Second, part of the corporate block is encumbered. A pledged stake can still sit inside a control picture, but it is also part of a financing structure, not a museum piece kept under glass.
What to watch
The caveat is timing. The 26.60% figure comes from the corrected joint-holding report based on May 1 holdings, while the June 3 standalone report itself was filed for an address change. Shareholding ratios can move after those dates, and the collateral arrangement should not be read as a guarantee that the current ownership structure will stay intact.