Taiyo Holdings Co., Ltd. (4626.T) : juste valeur

Thèse ACCE

Taiyo Holdings makes photosensitive solder resists, dry film photoresists and related coatings used in printed circuit boards and semiconductor packaging, a niche where a handful of Japanese specialists hold most of the qualified supply. Its moat comes from qualification cycles: once a solder resist is specified into a customer's board or package, switching suppliers means re-testing and re-approval, which keeps share sticky. Revenue grew 17.6% recently, and the 50.0% gross margin and 26.9% operating margin point to pricing power that a commodity chemicals business would not have. The stock trades at 24.9 times trailing earnings but 17.3 times forward, so the market is pricing a sharp earnings step-up that needs checking against the order book and the AI-server and advanced-packaging demand that is supposed to drive it. The 23.8% ROE and the absence of index membership suggest a company the broader market has not yet fully re-rated, which makes it worth a deeper look on the forward estimates before anything else.