About Huayangtong

Crafting Computing Infrastructure with Precision SheetMetal

Precision Sheet Metal · Computing Infrastructure |Empowering Hardware Manufacturing for AI Data Centers

Wholly-owned Subsidiary of Hengmingda | One-stopSolution Expert from Sheet Metal Components to EMS System Integration

Exempted Supplier for Top-tier Computing Hardware |230,000 ㎡ Intelligent Manufacturing Base | Vertical Integrationof Structural R&D & EMS Assembly | Full-range Quality Control Backed byListed Company

CompanyProfile

CompanyOverview

Huizhou HuayangtongElectromechanical Co., Ltd. is a wholly-owned subsidiary of Suzhou HengmingdaElectronic Technology Co., Ltd. (Stock Code: 002947), a publicly listedenterprise. With over 20 years of dedication to precision sheet metalmanufacturing, we are a leading domestic integrated service providerspecializing in precision structural components and EMS system assembly for AIcomputing servers, high-end switches and storage devices.

In 2020, Hengmingda officiallyexpanded into the precision sheet metal structural component sector andcompleted strategic integration with Huayangtong. Empowered by the listedcompany’s capital, R&D and supply chain resources, Huayangtong achieved comprehensiveupgrades in production capacity, technology and services. Equipped with a 230,000 ㎡ modernintelligent manufacturing base, we have built afull-industry-chain production system covering sheet metal processing, surfacetreatment, precision assembly and EMS system integration. Focusing on the datacommunication and computing power track, we maintain in-depth cooperation withtop-tier industry clients. We provide one-stop closed-loop manufacturingservices for global computing and communication hardware customers coveringpre-project structural R&D and drawing optimization, mass production andfinal complete machine delivery, helping clients improve product quality,shorten production cycles and cut overall costs.

Qualifications& Certifications

System Certification: ISO 9001Quality Management System, IATF 16949 Automotive Quality Management System.Standardized full-process production management meets stringent quality controlrequirements for high-end manufacturing.

Authoritative Customer Honors:Gold Award for Global Core Supplier, Technical Breakthrough Award for ComputingServer Projects, Annual Excellent Delivery Award granted by top-tier Hcustomer.

Core Supply ChainQualification: The only inspection-exempt supplier of computing cabinets fortop-tier clients, fully admitted into the core supply chain system of high-endcomputing hardware.

GroupSynergy Advantages

Backed by comprehensiveresources of listed company Hengmingda, Huayangtong realizes industrialvertical integration and two-way technological empowerment. On one hand, weshare the group’s R&D laboratories, centralized procurement system andunified quality control standards to ensure stable raw material supply andconsistent product quality. On the other hand, we integrate precision sheetmetal manufacturing and EMS system assembly services. Different from ordinarysingle-process sheet metal factories, we deliver integrated services includingstructural design optimization, sheet metal fabrication, complete machineassembly and functional testing. This reduces customers’ multi-supplier dockingcosts, shortens product time-to-market, and comprehensively enhances clients’core market competitiveness.

Development History

2000 · Foundation Establishment

2009 · Breakthrough in Communication Industry

2010 · Global Market Recognition

2013 · Forward Layout for Computing Track

2020 · Strategic Upgrade via Merger

2023 · Core Supplier for Computing Hardware

2024 · Benchmark of Premium Quality

2025 · Joint R&D & Cost Optimization

Future Outlook · Deep Vertical Integration: We will further integrate sheet metal manufacturingand EMS assembly businesses, increase R&D investment in liquid-cooledservers and ultra-high density computing cabinets. With full-chain intelligentmanufacturing capabilities, we will deliver long-term value for globalcomputing and communication industry partners.

Intelligent Manufacturing Strength

Production Base Layout

The company owns a 230,000 ㎡ one-stop modern intelligent manufacturing park, divided into five independent professional workshops.We adopt closed-loop management for working procedures, quality inspection andmaterial storage to avoid cross-contamination, fully meeting dust-free,high-precision and high-stability production standards for high-end computinghardware:

Precision Sheet Metal Workshop

Robotic Welding Workshop

Automatic Powder Coating Workshop

Precision Assembly Workshop

EMS System Assembly Workshop

Core High-precision Manufacturing Equipment

We have comprehensively promoted production automationupgrading and eliminated inefficient manual processes. Equipped with top-tierindustrial intelligent manufacturing equipment, we guarantee dimensionalaccuracy and product consistency from the production source. Core equipmentincludes: laser & CNC punching integrated machine, bending manipulator,automatic riveting machine, automatic drilling machine, straightening-freerobotic welding fixture, full-automatic powder coating line, infrared film thicknesstester and semi-automatic precision assembly line. Our full-process automationrate ranks among the top in the industry.

Full-chain Manufacturing Process

We have established a 10-step traceable closed-loopintelligent manufacturing process covering R&D to delivery: CustomizedDesign & R&D → Independent Precision Mold Development → Laser Cutting →CNC Precision Bending → Seamless Robotic Welding → Automatic Surface PowderCoating → Precision Component Assembly → EMS Complete Machine Integration →Omnidirectional Finished Product Inspection → Packaging & Delivery.

Core Process Advantage: Ourself-developed straightening-free welding technology has been widely applied incomputing cabinet manufacturing. It eliminates manual post-weld straighteningprocedures, improves surface flatness and structural precision, shortensproduction lead time and reduces manual processing errors.

QualityControl & Delivery Capacity

Supported by dual internationalquality system certifications, we have built a four-level quality controlsystem including IQC (Incoming Quality Control), IPQC (In-process QualityControl), FQC (Final Quality Control) and OQC (Outgoing Quality Control). Equippedwith complete reliability testing devices for infrared film thicknessdetection, dimensional precision test, structural load-bearing test andcorrosion resistance test, we conduct full-dimensional inspection for allproducts before delivery.

We own strong flexibleproduction capacity with a 14-day prototype delivery cycle. We undertake bothsmall-batch customized prototyping and large-scale annual framework orderssimultaneously. As an inspection-exempt supplier for top computing clients, wegreatly simplify incoming inspection procedures and improve overall supplychain turnover efficiency for both parties.

Core Technologies & Product Portfolio

Five Core Technological Advantages

Automatic Engineering Drawing Processing

Straightening-free Robotic Welding Technology

Front-end Joint R&D for Cost Reduction

High-speed Prototype Delivery System

Zero-defect High-end Manufacturing Capability

MainProduct Portfolio

AI Computing Server Sheet MetalComponents

AI training server cabinets, AIinference server enclosures, high-density GPU server frames, supporting sheetmetal structures for liquid-cooled servers, server heat dissipation bracketsand electromagnetic shielding cavities. Our products cover full-range serverhardware demands for large-model computing centers.

Communication Network EquipmentStructural Parts

High-end switch enclosures,data center storage cabinets, communication equipment subracks and precisionstructural parts for wireless communication devices, supporting full-scenariostructural matching demands for data centers and 5G communication rooms.

Custom & New EnergySupporting Sheet Metal Products

Non-standard customizedprecision sheet metal parts, energy storage equipment enclosures, industrialcontrol cabinets and other customized metal structural components. Supported bymature craftsmanship and flexible production lines, we meet high-end customizedsheet metal demands across multiple industries.

CoreClients & Cooperation Modes

CoreStrategic Clients

We have long-term in-depthcooperation with global leading communication and computing hardwareenterprises as a tier-1 core supplier. We participate in iterative R&D andmass production of clients’ next-generation computing hardware products, and haveobtained multiple prestigious annual supplier honors thanks to our outstandingtechnology, quality and delivery performance.

DiversifiedCooperation Modes

Front-end Joint R&D:Provide full-process technical support including structural simulation, processoptimization and prototype verification matching clients’ new product R&Dcycle, optimizing product performance and manufacturing costs from the designsource.

Large-scale Mass Delivery:Relying on the 230,000 ㎡ intelligent manufacturing base, we accept annualframework bulk orders and ensure uninterrupted supply during peak seasons withstable production capacity.

Integrated Sheet Metal &EMS Delivery: One-stop service covering sheet metal fabrication, completemachine assembly and functional testing to streamline supply chain procedures.