ASMPT (00522) rose nearly 6% in morning trading. At the time of writing, the stock was up 4.52% to HK$182.8, with a turnover of HK$208 million.

The positive movement follows news of SK Hynix and Samsung Electronics actively expanding their HBM production capacity. ASMPT's TCB equipment has been among the first to be procured by several leading global HBM manufacturers for HBM4 mass production. SK Hynix placed a bulk order for over 30 TCB units from ASMPT for its 12-layer HBM3E production. For its latest HBM4 production, SK Hynix has again ordered multiple TCB units from ASMPT, each priced at approximately 4 billion Korean won, amounting to a total order value of around 30 billion Korean won.

Huatai Securities believes the company's business is flourishing across multiple segments including storage, C2W, CoPoS, and silicon photonics, positioning it to fully benefit from AI-driven advanced packaging demand. Strong SMT order performance reflects the ongoing diffusion of AI demand from advanced packaging into mainstream back-end processes, with demand from AI servers and optical modules becoming key growth drivers for the SMT business. The brokerage maintains its "Buy" rating on the stock and has raised its target price from HK$146 to HK$200.