TEMC Acquires 31.17% Stake in A-Tech Solution to Expand Semiconductor Infrastructure Portfolio
KRW 35 billion investment strengthens TEMC’s position across semiconductor equipment components, process materials and wafer reclaim services amid rising AI-driven chip manufacturing demand.
TEMC announced that its board has approved the purchase of 3.1 million shares in A-Tech Solution, representing a 31.17% stake in the company. The transaction, valued at 35 billion won, will be completed through a cash acquisition from private equity investor Woori Shinyoung Growth Cap No.1 Private Equity Investment Partnership. The deal is expected to close in early June.
The investment forms part of TEMC’s broader strategy to diversify operations and expand into new semiconductor-related business areas. The company currently operates across semiconductor speciality gases, semiconductor manufacturing facilities and secondary battery equipment.
TEMC supplies rare and specialty gases used in semiconductor lithography, etching and deposition processes, including neon, krypton, xenon and diborane. Its subsidiary, TEMC CNS, also provides semiconductor process materials and manufacturing systems used in chip fabrication and battery production facilities.
A-Tech Solution specialises in semiconductor equipment parts distribution, precision cleaning services and silicon component manufacturing. Its portfolio includes mass flow controllers and electronic pressure controllers used in semiconductor gas delivery systems, as well as silicon carbide components and silicon rings used in advanced dry etching equipment.
The acquisition will provide TEMC with broader exposure to semiconductor equipment components and maintenance services at a time when global chipmakers are increasing investment in advanced manufacturing capacity and AI-driven semiconductor production.
A-Tech Solution also operates a wafer reclaim business, reprocessing used 12-inch wafers for reuse in semiconductor manufacturing. The business supports growing industry efforts to improve cost efficiency and sustainability across semiconductor supply chains.
Despite recording revenue of 48.1 billion won last year, A-Tech Solution reported a net loss following a major fire at its Cheonan facility, which caused significant damage to buildings, equipment and inventory. However, the company remains strategically important within the semiconductor equipment ecosystem due to its specialised component and process capabilities.
Industry analysts view the transaction as part of a wider trend of consolidation and vertical integration within the semiconductor sector, as companies seek to strengthen supply chain resilience and secure exposure to high-growth semiconductor infrastructure markets.
