Oriental Semi × Hynetek Official Announcement!Join Us at the 2026 Global AI Server Power Supply Summit

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Company Founded in 2008, the company has a registered capital of RMB 122,574,975. It was listed on the Sci-Tech Innovation Board (STAR Market) of the Shanghai Stock Exchange on February 10, 2022, with the stock code: 688261.

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All products SJ MOSFETs SGT MOSFETs IGBTs Trench MOSFETs Power Module SiC MOSFETs GaN HEMT Power IC

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The company's main products include the GreenMOS series of Super Junction MOSFETs, SFGMOS and FSMOS series of Shielded Gate MOSFETs, TGBT, SuperSi²C MOSFETs, SuperSi MOSFETs and SiC MOSFETs. These products are widely applicable to industrial and automotive-grade application scenarios, represented by new energy vehicle DC charging piles, on-board chargers (OBC), photovoltaic inverters, energy storage systems, 5G base station power supplies, telecom power supplies, data center server power supplies, industrial lighting power supplies, power tools, intelligent robots, unmanned aerial vehicles (UAV) and UPS power supplies. They are also used in consumer electronics applications such as PC power supplies, adapters, TV power boards, fast chargers for mobile phones and electromagnetic heating products.

In order to meet the demand of high efficiency and minification of power supply system, Oriental Semiconductor has launched a new GreenMOS series of high voltage MOSFET, which adopts unique patented device structure and manufacturing process. GreenMOS product has faster switching speed and softer switching curve than conventional MOSFET, which can greatly restrain switch oscillation while obtaining extremely low dynamic loss. It can not only greatly improve system efficiency and reduce heating, but also simplify system EMI design.

Oriental Semiconductor’s SFGMOS Series MOSFET adopts Semi-Floating Gate structure, which combines the advantages of traditional planar structure and SGT structure of power MOSFET, and has the advantages of higher process stability and reliability, faster switching speed, smaller gate charge and higher application efficiency. SFGMOS Series MOSFET products cover the whole series of 20V~200V, which can be widely used in motor driver, synchronous rectification, etc.

Oriental Semiconductor's IGBT chips adopt a unique Trident-Gate Bipolar Transistor (TGBT) device structure to achieve lower on-state voltage drop and reduced switching losses.Multiple series of first and second-generation TGBT products have been successively launched, covering voltage ranges from 600V to 1700V. These products are suitable for applications such as photovoltaic energy storage inversion, DC charging piles, automotive main drive, OBC, and UPS. Additionally, Oriental has developed an ultra-high-speed series TGBT with an operating frequency of 60-100 kHz, which meets the demands of further high-frequency power systems while delivering higher efficiency.

Trench MOSFET: Reliable and Trustworthy Performance Through extensive development，we continuously expand our product portfolio with advanced small signal MOS and power MOS solutions. Our comprehensive product portfolio provides the flexibility needed in today's market, easily choose the product that best suits for you. Our leading technology ensures the highest reliability and performance, while advanced packaging enhances resistance and thermal performance while reducing size and costs.

Advanced power modules, including IGBTs, MOSFETs, SiC, Si/SiC hybrid modules, diodes, SiC diodes, and intelligent power modules. IGBT modules are used in applications such as main drive and DC-AC class solar inverters, energy storage systems, uninterruptible power supplies, and motor drives. MOSFET modules are used in automotive motor drives and on-board charger applications, with voltage ratings of 40 V, 60 V, 80 V, and 650 V, and use super-junction technology and inductive resistors.

Third-generation semiconductor material power devices are one of the important components of high-performance power devices in the future. The R&D team of Oriental has rich experience in wide bandgap semiconductor research and has developed a series of SiC MOSFETs.

Gallium Nitride High Electron Mobility Transistors (GaN HEMT) are increasingly becoming the choice for mainstream markets. For various high-voltage and low-voltage application scenarios, GaN HEMTs offer the fastest switching capabilities (with the highest dv/dt and di/dt) and superior energy efficiency performance. In addition, the self-developed GaN HEMTs by Oriental Semiconductor Co., Ltd. have reduced conduction losses and switching losses through innovative designs, further improving power density.

When connected in series with a power source, the OSP5050 high side OR-ing FET controller is used in conjunction with an external NMOSFET as an ideal diode rectifier. This OR-ing controller allows MOSFETs to replace diode rectifiers in distribution networks, thereby reducing power loss and voltage drop.

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Application The products of Oriental Semiconductor cover a wide and specific range of application fields. In automotive electronics, the company has made in-depth deployment in electrification, covering on-board charging, various electronic control systems and thermal management. In the industrial and energy sectors, it provides solutions for battery testing, photovoltaic inversion and industrial power supplies. Meanwhile, its products also serve multiple key industries including consumer electronics (e.g., fast charging, televisions), household appliances (e.g., refrigerators, vacuum cleaners), communication facilities (e.g., data center power supplies) and motor drives (e.g., robots, UAVs, forklifts).

Automotive Electronics On-Board Charger (OBC) Automotive DC-DC Converter Automotive Lighting DC-DC Converter Body Domain Controller Electronic Power Steering (EPS) Electronic Water Pumps & Electronic Oil Pumps & Fan Drivers PTC Heater High-Voltage Electric Compressor (HVAC)

Power Supplies for Data Center AIDC Data Center AC-DC Converter DC-DC Converter

Consumer Electronics PD Chargers & Adapters TV Power Supply Printer System Power Tools

Industrial Applications Battery Formation and Testing PV Micro-inverters Residential Energy Storage Inverters String PV Inverters Industrial Power Supplies Charging Pile Power Modules

Household Appliances Vacuum Cleaners Refrigerator Compressors Fan Drivers

Communication Technology Communication Power Supplies DC-DC Converters

Motor Drives Forklift Drivers Aircraft and Drones

Robotics Robotic Vacuum Cleaners Humanoid Robots

Quality Management

Quality Management Date of Certification for ISO 9001 Quality Management System: January 11, 2016. Date of Certification for CNAS 17025 Laboratory Management System: March 3, 2025

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Investor Relations Oriental Semiconductor is committed to establishing an effective communication mechanism with investors. Through transparent, timely and accurate information disclosure and communication, we help investors gain a comprehensive and objective understanding of the company’s strategies, operating status, financial performance and future development prospects. We ensure that all investors receive information of equal quality, build trusting relationships with them, and thereby enable the company’s intrinsic value to be reasonably reflected in the capital market.

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Recently, Oriental Semi has officially completed the holding acquisition of Hynetek by acquiring 53.09% of its equity and finishing the industrial and commercial registration changes. Hynetek has officially become a holding subsidiary of Oriental Semi.
This milestone marks that Oriental Semi has evolved from a pure power device supplier into an AI power system solution provider, opening a new chapter in its full-value strategic layout of “Control – Drive – Power Stage”.

This holding acquisition achieves strong complementary advantages and in-depth synergy. Oriental Semi’s technological barriers and market edge in high-performance power devices are perfectly integrated with Hynetek’s profound accumulation in digital energy control ICs, enabling precise strategic positioning in the high-end core track of AI server power supplies.
As a national-level Specialized, Refined, Differential and Innovative “Little Giant” enterprise, Hynetek has long been engaged in smart energy control technology. Its core R&D team comes from top semiconductor enterprises at home and abroad, holding a number of independent intellectual property patents. Its digital control IC products have passed verification by international leading manufacturers and achieved small-batch shipment with outstanding core competitiveness.
Through joint efforts and in-depth collaboration, the two sides will build a full industrial chain covering Control – Drive – Power Stage, delivering integrated power supply solutions with higher efficiency, superior reliability and better cost performance for the AI server industry.

Coinciding with the industry grand event, Hynetek, now under the holding of Oriental Semi, will make an appearance at the 2026 Global AI Server Power Supply Summit on May 22, 2026. It will showcase the HP1000A AIDC Intermediate Bus Power Supply Solution at Booth B04.
The company will share insights on the evolution trends of AI server power supplies, the integrated AIDC power solution jointly developed by Oriental Semi and Hynetek, the core advantages of the HP1000A DC/DC digital controller, as well as the typical applications of Hynetek’s digital control chips in IBC scenarios.
This marks Hynetek’s first public appearance as a subsidiary of Oriental Semi， showcasing the technological achievements and integrated solution empowered by the in-depth synergy of both parties. We look forward to exploring the evolution of AI power technology and jointly embracing new industrial opportunities together with industry peers.

The grand summit kicks off! We sincerely invite you to visit our booth.Come and explore the core technologies and flagship products jointly empowered by Oriental Semi and Hynetek, conduct in-depth exchanges on integrated AI server power supply solutions, and jointly shape the new future of the industry.