Ya'an Bestry Performance Material Co., Ltd. has obtained a national invention patent (No. ZL202511700571.0) for its high aspect-ratio hexagonal boron nitride and preparation method. The technology delivers boron nitride platelets with an aspect ratio above 30 and a D50 of 4.5–7.5 μm, enhancing thermal conduction in composites. It supports heat management in 5G communications, new energy vehicles and high-performance computing chips.