- The Japanese government has moved to halt a full acquisition bid for Makino Milling, a premier industrial machine maker, by the South Korea-based private equity firm MBK Partners.
- Finance Minister Satsuki Katayama stated the suspension is “essential” because Makino’s high-precision tools are integral to Japan’s defense equipment manufacturing and aerospace sectors.
- This marks only the second time Japan has used its foreign exchange and trade laws to issue a suspension edict on national security grounds.
The Japanese government has officially recommended the suspension of a major foreign takeover attempt, citing significant risks to the nation’s security architecture.
Eko Hot Blog reports that Tokyo-based Makino Milling, recognized globally as a leader in high-tech machine tools, was the target of a buyout by MBK Partners, a prominent private equity fund based in South Korea.
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Finance Minister Satsuki Katayama explained on Thursday, April 23, 2026, that the decision was based on the critical nature of Makino’s products.
The company, founded in 1937, provides specialized machinery used in the production of defense equipment, semiconductors, and aerospace components.

“We have recognized the risk that the investment in question can undermine our country’s security,” Katayama told reporters, emphasizing that the manufacturer’s technology is “sensitive” and has high potential for military application.
MBK Partners expressed extreme surprise at the notice, noting that the takeover had been on track for approval by late June.
The firm has been given until May 1 to decide whether to comply with the government’s advisory.
Under Japan’s current foreign exchange and trade laws, the government maintains strict oversight over investments in companies that are deemed vital to national infrastructure and safety.





