Notes
Tese is a leading Korean test consumables maker, historically focused on memory probe cards for SK Hynix and Samsung, and has been expanding into DRAM/HBM probe cards and test sockets to capture growing AI memory test demand. The company also has an OSAT-style packaging/test services arm via subsidiaries, diversifying revenue beyond consumables.
TSE filed its Q1 2026 quarterly report covering January 1 to March 31, 2026, the company's 32nd fiscal year. The consolidated scope includes 10 subsidiaries (3 listed, 7 unlisted), unchanged from the start of the period, with LDT Co., Ltd. newly included as a consolidated subsidiary following a third-party allocation capital increase participation in December 2025. The company's corporate credit rating was upgraded to A- in April 2025 from BBB+ a year earlier, returning to its 2023 level. TSE remains classified as a mid-sized enterprise focused on manufacturing semiconductor and display inspection equipment, with operations spanning Korea, China (Weihai, Wuhan, Hefei), the U.S. (Pleasanton, CA), and Vietnam.