Denso Corp. is considering withdrawing its proposed acquisition of Rohm Co. [1], a Japanese power chipmaker [1].
This potential withdrawal represents a significant shift in the automotive supply chain. As electric vehicle adoption grows, the securement of power semiconductors—the components that manage electricity in EVs—is critical for auto-parts suppliers to maintain production stability.
Reports surfaced on April 27 that Denso is weighing the decision to pull the bid [1], [4]. The company is considering the move after failing to secure the support of Rohm [4].
Market reaction in Tokyo was immediate. Rohm shares fell as much as 16% [2] during the trading session. Other reports indicate shares traded 9% lower at 3,449.0 yen [2], while other data shows shares were last 7.2% lower at 3,495 yen [3].
Despite the volatility, some reports indicate that other strategic partnerships may be in play. According to MarketWatch, citing Yomiuri, talks among Rohm, Toshiba Corp. and Mitsubishi Electric Corp. regarding the merger of their power semiconductor businesses have seen rapid progress [3].
Katsumi Azuma, Rohm's CEO, said, "Rohm Making Progress on Power Chip Merger After Takeover Bid" [3].
Denso's move to reconsider the acquisition would leave Rohm as an independent entity or part of a broader industry consolidation among Japanese electronics firms. The power semiconductor market is highly competitive, and the failure of this takeover bid would signal a shift in the same-sector consolidation strategy for Japanese auto-parts suppliers.
“Denso Corp. is considering withdrawing its proposed acquisition of Rohm Co.”
The possible collapse of the Denso-Rohm deal suggests that vertical integration in the automotive semiconductor space is facing hurdles. While Denso seeks to stabilize its supply chain, the resistance from Rohm and the potential merger of Rohm with other Japanese electronics giants like Toshiba and Mitsubishi Electric indicates a shift toward horizontal consolidation among chipmakers rather than supplier-led acquisitions.
