
Founded in 2011 and publicly listed on the Shenzhen Stock Exchange (SZSE: 300790), Dongguan Yutong Optical Technology Co., Ltd. (YTOT) is a global leader in precision optical lens design and automated manufacturing. YTOT holds the world's largest market share in security surveillance lenses and specializes in high-definition optical assemblies for smart security (4K, Super Starlight, fisheye, CS-mount), automotive vision (LiDAR optics, HUD optics, sensing cameras), machine vision (C-mount/F-mount industrial lenses, low-distortion telecentric designs), consumer IoT, and video conferencing systems. Supported by automated production facilities in Dongguan and Shangrao, YTOT supplies global OEM/ODM partners in smart city, intelligent transportation, automated industrial inspection, and automotive markets.

Founded in 2004 by a team of experienced engineers, Shanghai Sanctity Laser is a leading Chinese manufacturer and global supplier specializing in laser technology and precision optical components. The company provides a comprehensive range of Diode-Pumped Solid-State (DPSS) lasers, diode lasers, and laser modules covering wavelengths from UV (266nm) to Infrared (2200nm). With extensive in-house capabilities—including optical coating, device fabrication, and system integration—Sanctity Laser serves industrial, commercial, and research sectors worldwide, offering "one-stop" procurement for high-performance laser systems and optical assemblies.

Established as one of China’s earliest pioneers in fiber optic image transmission, Guangzhou HONSUN Opto-Electronic Co., Ltd. is a national high-tech manufacturer specializing in special optical fiber devices, micro-channel optics, and passive optical communication components. HONSUN develops and produces fiber optic plates (FOPs), fiber optic inverters, fiber optic tapers, Anti-Vignetting Glass (AVG), optical micro-channel array plates, fiber couplers, wavelength division multiplexers (WDMs), isolators, and beam combiners. Serving low-light night vision systems, aerospace payloads, medical radiography, image display, and 5G telecommunication networks worldwide, HONSUN is a key global supplier (including to Exosens/Photonis) for advanced electro-optical image transmission components.

Established in 2003, Shenzhen HFC Shielding Products Co., Ltd. is a national high-tech Chinese manufacturer specializing in advanced Thermal Interface Materials (TIM), electromagnetic compatibility (EMC) shielding components, and RF-absorbing materials. HFC is a pioneer in oriented graphene thermal pads, carbon fiber vertical alignment gaskets, phase-change materials, thermally conductive silicone pads, and magnetic wave absorbers. Serving 5G ICT infrastructure, optical transceivers, AI servers, smart automotive electronics, consumer electronics, and energy storage systems globally, HFC provides high-performance thermal management and electromagnetic interference (EMI) protection solutions.

Founded in 1999 and operating as a core subsidiary under the China Energy Conservation and Environmental Protection Group (CECEP), Hi-Tech Optoelectronics Co., Ltd. (HTOE) is a specialized Chinese developer and manufacturer of high-power semiconductor lasers, optoelectronic packaging, and diode laser subsystems. HTOE manufactures unmounted single-emitter chips, diode laser bars, packaged single-emitter devices, conduction-cooled and micro-channel diode laser arrays, diode-pumped laser modules, and integrated laser subsystems. Serving industrial materials processing, diamond cutting, medical aesthetics, defense electro-optics, and solid-state laser pumping, HTOE delivers reliable high-brightness laser solutions worldwide.

Founded in 2016, Shaoxing Joinwin Micro-Led Technology (Joinwintek) is a pioneering high-tech enterprise specializing in the research, development, and manufacturing of ultra-high-resolution Micro LED technologies. The company is a recognized leader in silicon-based Micro LED micro-displays, boasting proprietary innovations in Gallium Nitride (GaN) Micro LED array design, advanced driving backplanes, and custom optical architectures. Achieving pixel densities up to 1500 PPI and peak brightness levels exceeding 100,000 nits, Joinwintek's full-color RGB micro-displays are mission-critical components. They are specifically engineered to meet the demanding wide field-of-view (FOV) and extreme brightness requirements of next-generation Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (XR) headsets.

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