[Edaily Reporter Kwon Oh Seok ] The stock price of BIOLOG DEVICE CO., LTD(208710), which had hit the daily upper limit on expectations that the company would enter the next-generation cooling solutions business based on all-solid-state thermoelectric devices, is now plummeting.

According to MP Doctor on the 29th, as of 9:36 a.m., PHOTON’s stock is trading at 1,783 won, down 23.80% from the previous trading day. The previous day (the 28th), the stock closed at the daily price limit of 2,340 won, up 30.00% from the previous trading day.
PHOTON is a company that primarily manufactures flexible printed circuit board assemblies (FPCB Assy) for smartphone camera modules. It is currently fostering new business ventures by pursuing a strategic investment in EdgeQ, a company currently developing next-generation ultra-precision cooling technology based on quantum precision control.
The previous day, independent research firm ARIS assessed that PHOTON has the potential to enter the next-generation thermal management market based on quantum precision control-based ultra-precision cooling technology, sparking a surge in buying interest. However, the stock price appears to be falling as sellers are offloading shares to lock in profits.
Earlier, ARIS analysts Lee Jae-mo and Jeong Min-hee explained in a corporate analysis report published the previous day, “Building on its existing smartphone camera module component business, PHOTON is pursuing a new business targeting the thermal management market, which has emerged as a key challenge in the artificial intelligence (AI) data center, electric vehicle, and semiconductor industries.”
The all-solid-state thermoelectric device currently under development by EdgeQ is a technology that uses electric current to directly transfer heat without a refrigerant. Since it does not require a compressor or piping, it is well-suited for miniaturization and low power consumption. Additionally, its silent and vibration-free characteristics make it applicable to various fields, including electric vehicles, AI data centers, semiconductors, and industrial equipment.