UNICON Holdings Co., Ltd. (Ticker: 407A JP) is a Japan-based infrastructure contractor overseeing a group of civil and building companies that construct coastal disaster defenses, bridges, roads, rivers and dams nationwide. UNICON plans to list on the Tokyo Stock Exchange (Growth) on Sept. 26, 2025, offering 4.73 million common shares, all secondary, at JPY 1,000–1,060 per share to raise about JPY 5.01 billion (approximately USD 34.04 million). No new shares are issued; proceeds will go to selling shareholders. A 15% greenshoe (708,700 shares) is available. Nomura Securities is the lead manager. Founded in 2019 and headquartered in Sendai, UNICON operates through subsidiaries including Sanwa Kensetsu and other regional contractors. The company’s filing indicates bookbuilding from Sept. 9–16, pricing on Sept. 17, and subscription from Sept. 18–24.