Group 1 - The company, Beilong Precision (301567), provides structural components such as lens tubes, isolation rings, pressure rings, lens seats, bases, carriers, shielding covers, and VCM motors for leading enterprises in the smartphone sector, including Sunny Optical, Amphenol, Samsung Electro-Mechanics, and TDK Group [1] - The products are widely used in smartphones operating on both Android and iOS systems [1]