Chipmaker J.E.T. Given One Year to Clear Tokyo Exchange Review or Risk Delisting

Japan's Tokyo Stock Exchange placed semiconductor-equipment maker J.E.T. (ticker 6228) on a re-examination grace period on June 18, 2026, after concluding the Okayama-based company had booked improper past accounting entries and breached a written pledge it filed when it first listed. The company set out the details in the semiannual report it filed on August 14, 2026, covering the six months to the end of June.

The grace period runs to June 18, 2027. Inside that window, J.E.T. must apply to the exchange for a review against standards equivalent to those used for new listings. If that review finds the company falls short, its shares may be delisted, according to the filing, though the outcome depends on the exchange's assessment rather than being automatic. The exchange has also demanded a ¥28.8mn listing-contract penalty. The pressure shows up in the half-year numbers.

The accounting problem traces back further than this filing. J.E.T. set up a special investigation committee of outside lawyers and accountants to examine revenue-recognition timing in the fiscal years ended December 2023 and December 2024. The committee delivered its report on April 30, 2026, and the company restated its past accounts on May 29, 2026. Cleaning up after that process, including corrected-audit fees, the investigation committee's own costs, support for preparing the restated disclosure documents, and the TSE penalty, cost J.E.T. ¥488mn in extraordinary losses through June 30.

The dents already show in the results. Half-year sales fell to 86.5% of the year-earlier level, landing at ¥6.18bn, while the net loss attributable to parent shareholders narrowed to ¥1.06bn from ¥2.13bn a year earlier. The operating and ordinary lines improved from a year ago, but the restatement charge kept the bottom line deep in the red.

Leadership turned over during the episode. J.E.T.'s representative director and chief executive resigned the post effective July 15, 2026; the company disclosed the departure in a separate extraordinary report filed the same day as the semiannual results, August 14, 2026. The departing executive held 54,000 shares as of the June 30 record date. Separately, the company's representative senior managing director certified that the semiannual report itself was properly stated under securities law, noting no special matters arose in that review.

J.E.T. says it is working on preventive measures, stronger internal controls, and improved corporate governance ahead of filing its re-examination application, or a market-segment change request, within the grace period. Whether that satisfies the exchange's new-listing-equivalent bar will decide whether J.E.T. keeps its Standard Market listing past June 2027.